diff --git a/practice.js b/practice.js
index a9e0f69..6ea68cc 100644
--- a/practice.js
+++ b/practice.js
@@ -28,7 +28,9 @@
 */
 
 // Code Here
-
+function first (arr, cb) {
+  cb(arr[0]);
+}
 // Do not edit the code below.
 var names = ['Aodhan', 'Greg', 'Jake', 'Oscar', 'Aodhan', 'Tanner', 'Greg'];
 
@@ -48,7 +50,9 @@ first(names, function(firstName){
 */
 
 //Code Here
-
+function last (arr, cb) {
+  cb(arr[arr.length -1]);
+}
 // Do not edit the code below.
 last(names, function(lastName){
   console.log('The last name in names is ' + lastName);
@@ -66,7 +70,9 @@ last(names, function(lastName){
 */
 
 //Code Here
-
+function multiply (num1, num2, cb) {
+  cb(num1 * num2);
+}
 // Do not edit the code below.
 multiply(4, 3, function(answer){
   console.log('The answer is ' + answer); //should console.log "The answer is 12"
@@ -85,7 +91,9 @@ multiply(4, 3, function(answer){
 */
 
 //Code Here
-
+function contains (arr, name, cb) {
+  arr.map(val => val == name ? cb(true): cb(false));
+}
 // Do not edit the code below.
 contains(names, 'Oscar', function(result){
   if(result === true){
@@ -106,7 +114,9 @@ contains(names, 'Oscar', function(result){
 */
 
 //Code Here
-
+function uniq (arr, cb) {
+  cb([...new Set(arr)]);
+}
 // Do not edit the code below.
 uniq(names, function(uniqArr){
   console.log('The new names array with all the duplicate items removed is ', uniqArr);
@@ -123,7 +133,11 @@ uniq(names, function(uniqArr){
 */
 
 //Code Here
-
+function each (arr, cb) {
+  for (i of arr) {
+    cb (i, arr.indexOf(i));
+  }
+}
 // Do not edit the code below.
 each(names, function(item, indice){
   console.log('The item in the ' + indice + ' position is ' + item)
@@ -131,7 +145,6 @@ each(names, function(item, indice){
 // Do not edit the code above.
 
 
-
 ////////// PROBLEM 7 //////////
 
 /*
@@ -140,7 +153,13 @@ each(names, function(item, indice){
 */
 
 // Code here
-
+function getUserById (arr, id, cb) {
+  for(i of arr) {
+    if(i.id == id) {
+      cb(i);
+    }
+  }
+} 
 // Do not edit the code below.
 var users = [
   {
diff --git a/user.json b/user.json
index 4ac80a0..ed7c1c0 100644
--- a/user.json
+++ b/user.json
@@ -1,4 +1,4 @@
 {
-  "name": "",
-  "email": ""
+  "name": "Marvin Banton",
+  "email": "marvin.banton@boom.camp"
 }