diff --git a/index.js b/index.js
index 43db2abe..b1fb34c7 100644
--- a/index.js
+++ b/index.js
@@ -15,10 +15,25 @@
         + It should return a string with `name` and `age`. Example: "Mary, 50"
 */
 
-function Person() {
-
+function Person(name, age) {
+  this.name = name;
+  this.age = age;
+  this.stomach = [];
 }
 
+Person.prototype.eat = function (someFood) {
+  if (this.stomach.legnth !== 10) {
+    this.stomach.push(someFood);
+  }
+};
+
+Person.prototype.poop = function () {
+  this.stomach = [];
+};
+
+Person.prototype.toString = function () {
+  return `${this.name}, ${this.age}`;
+};
 
 /*
   TASK 2
@@ -36,10 +51,18 @@ function Person() {
         + The `drive` method should return a string "I ran out of fuel at x miles!" x being `odometer`.
 */
 
-function Car() {
-
+function Car(model, milesPerGallon) {
+  this.model = model;
+  this.milesPerGallon = milesPerGallon;
+  this.tank = 0;
+  this.odometer = 0;
 }
 
+Car.prototype.fill = function (gallons) {
+  this.tank += gallons;
+};
+
+// const greenCar = new Car(model, milesPerGallon);
 
 /*
   TASK 3
@@ -49,10 +72,15 @@ function Car() {
         + Should return a string "Playing with x", x being the favorite toy.
 */
 
-function Baby() {
-
+function Baby(name, age, favoriteToy) {
+  Person.call(this, name, age);
+  this.favoriteToy = favoriteToy;
 }
+Baby.prototype = Object.create(Person.prototype);
 
+Baby.prototype.play = function () {
+  return `Playing with ${this.favoriteToy}`;
+};
 
 /* 
   TASK 4
@@ -66,14 +94,14 @@ function Baby() {
 ///////// END OF CHALLENGE /////////
 
 /* 🛑🛑🛑🛑🛑🛑🛑🛑🛑🛑 Please do not modify anything below this line 🛑🛑🛑🛑🛑🛑🛑🛑🛑🛑 */
-function foo(){
+function foo() {
   console.log('its working!');
   return 'bar';
 }
 foo();
 module.exports = {
   foo,
-  Person, 
+  Person,
   Car,
-  Baby
-}
+  Baby,
+};
diff --git a/package-lock.json b/package-lock.json
index d758c657..4a96a12c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "codegraded-project-js",
-  "version": "0.0.8",
+  "version": "0.0.9",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "codegraded-project-js",
-      "version": "0.0.8",
+      "version": "0.0.9",
       "devDependencies": {
         "@babel/core": "7.17.8",
         "@babel/plugin-transform-runtime": "7.17.0",