diff --git a/lab-python-lambda-map-reduce-filter.ipynb b/lab-python-lambda-map-reduce-filter.ipynb
index 96c9781..c4546e4 100644
--- a/lab-python-lambda-map-reduce-filter.ipynb
+++ b/lab-python-lambda-map-reduce-filter.ipynb
@@ -66,7 +66,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 3,
    "id": "08463071-9351-4d49-8d29-4fcb817fb177",
    "metadata": {},
    "outputs": [],
@@ -74,6 +74,36 @@
     "transactions = [(-1200, 'debit'), (2500, 'credit'), (-100, 'debit'), (850, 'credit'), (-250, 'debit'), (1500, 'credit'), (-300, 'debit'), (5000, 'credit'), (-850, 'debit'), (1000, 'credit')]"
    ]
   },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "id": "9c04ad39",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "[(-1200, 'debit'),\n",
+       " (2500, 'credit'),\n",
+       " (-100, 'debit'),\n",
+       " (850, 'credit'),\n",
+       " (-250, 'debit'),\n",
+       " (1500, 'credit'),\n",
+       " (-300, 'debit'),\n",
+       " (5000, 'credit'),\n",
+       " (-850, 'debit'),\n",
+       " (1000, 'credit')]"
+      ]
+     },
+     "execution_count": 4,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "transactions"
+   ]
+  },
   {
    "cell_type": "markdown",
    "id": "ae7d88f0-a8e7-4f74-98d3-802306bdcf07",
@@ -94,12 +124,16 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 8,
    "id": "0781335d-39cf-403d-b86a-ca908a09fe55",
    "metadata": {},
    "outputs": [],
    "source": [
-    "# your code goes here"
+    "debit = lambda x: x[1] == 'debit'\n",
+    "\n",
+    "debit_transaction = filter(debit,transactions)\n",
+    "\n",
+    "debit_list = list(debit_transaction)"
    ]
   },
   {
@@ -124,12 +158,30 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 16,
    "id": "25073469-7258-4fc6-b0a0-ef8ea57688fe",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "[(-100, 'debit'),\n",
+       " (-250, 'debit'),\n",
+       " (-300, 'debit'),\n",
+       " (-850, 'debit'),\n",
+       " (-1200, 'debit')]"
+      ]
+     },
+     "execution_count": 16,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
-    "# your code goes here"
+    "debit_list \n",
+    "\n",
+    "\n",
+    "sorted(debit_list,key= lambda t:t[0],reverse=True)"
    ]
   },
   {
@@ -158,7 +210,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 18,
    "id": "e1de9d03-f029-4e2e-9733-ae92e3de7527",
    "metadata": {},
    "outputs": [],
@@ -169,12 +221,27 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 19,
    "id": "2f253b7e-5300-4819-b38f-9fc090554f51",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "[105.0, 52.5, -26.25, 1050.0, -10.5]"
+      ]
+     },
+     "execution_count": 19,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
-    "# your code goes here"
+    "add_interest_func = lambda x: x*1.05\n",
+    "\n",
+    "balance_interest = list(map(add_interest_func,balances))\n",
+    "\n",
+    "balance_interest"
    ]
   },
   {
@@ -195,7 +262,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 41,
    "id": "69e24c3b-385e-44d6-a8ed-705a3f58e696",
    "metadata": {},
    "outputs": [],
@@ -209,12 +276,28 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 46,
    "id": "0906a9b0-d567-4786-96f2-5755611b885e",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "[{'balance': 1000, 'interest_rate': 0.02, 'new_balance': 1020.0},\n",
+       " {'balance': 2000, 'interest_rate': 0.01, 'new_balance': 2020.0},\n",
+       " {'balance': 500, 'interest_rate': 0.03, 'new_balance': 515.0}]"
+      ]
+     },
+     "execution_count": 46,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
-    "# your code goes here\n"
+    "accounts_func = lambda x: {**x,'new_balance':x['balance']*(1+x['interest_rate'])}\n",
+    "accounts_new = map(accounts_func,accounts)\n",
+    "\n",
+    "list(accounts_new)"
    ]
   },
   {
@@ -243,14 +326,37 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 75,
    "id": "6284dbd3-e117-411e-8087-352be6deaed4",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[105.0, 52.5, -26.25, 1050.0, -10.5]\n"
+     ]
+    },
+    {
+     "data": {
+      "text/plain": [
+       "-36.75"
+      ]
+     },
+     "execution_count": 75,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     "from functools import reduce\n",
     "\n",
-    "# your code goes here"
+    "print(balance_interest)\n",
+    "\n",
+    "\n",
+    "balance_interest_filtered = list(filter(lambda b: b<0 ,balance_interest))\n",
+    "\n",
+    "reduce(lambda x,y:x+y, balance_interest_filtered)\n"
    ]
   },
   {
@@ -273,24 +379,59 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 93,
    "id": "da2264b5-298e-4b45-99df-852b94e90d15",
    "metadata": {},
    "outputs": [],
    "source": [
+    "from functools import reduce\n",
+    "\n",
     "accounts = [\n",
     "    {'balance': 1000, 'withdrawals': [100, 50, 200]},\n",
     "    {'balance': 2000, 'withdrawals': [300, 100]},\n",
     "    {'balance': 500, 'withdrawals': [50, 100, 75]},\n",
-    "]\n",
-    "\n",
-    "# your code goes here\n"
+    "]\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 96,
+   "id": "62d8b930",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def calculate_balance(account):\n",
+    "        balance = list(account.values())[0]\n",
+    "        withdrawal = reduce(lambda x,y: x+y,list(account.values())[1])\n",
+    "        remaining = balance - withdrawal\n",
+    "        return remaining\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 97,
+   "id": "b4b80591",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "[650, 1600, 275]"
+      ]
+     },
+     "execution_count": 97,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "list(map(calculate_balance,accounts))"
    ]
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "py310",
    "language": "python",
    "name": "python3"
   },
@@ -304,7 +445,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.13"
+   "version": "3.10.18"
   }
  },
  "nbformat": 4,