diff --git a/04 - Array Cardio Day 1/index-START.html b/04 - Array Cardio Day 1/index-START.html
index 0dcfd00f40..74ecc60903 100644
--- a/04 - Array Cardio Day 1/index-START.html	
+++ b/04 - Array Cardio Day 1/index-START.html	
@@ -38,17 +38,26 @@
     
     // Array.prototype.filter()
     // 1. Filter the list of inventors for those who were born in the 1500's
-
+    
+    let invent_filtered = inventors.filter(i => (i['year'] < 1600 && i['year'] > 1499) ? i : null);
+    
     // Array.prototype.map()
     // 2. Give us an array of the inventors first and last names
+    let names = inventors.map((word, i) => word.first, word.last)
 
     // Array.prototype.sort()
     // 3. Sort the inventors by birthdate, oldest to youngest
+    let age_sort = inventors.sort((a,b) => a.year - b.year);
 
     // Array.prototype.reduce()
     // 4. How many years did all the inventors live all together?
 
+     let years_lived = inventors.reduce((total, inventor) => { return total + (inventor.passed - inventor.year)  }, 0);
+
     // 5. Sort the inventors by years lived
+    
+
+
 
     // 6. create a list of Boulevards in Paris that contain 'de' anywhere in the name
     // https://en.wikipedia.org/wiki/Category:Boulevards_in_Paris
@@ -61,6 +70,17 @@
     // Sum up the instances of each of these
     const data = ['car', 'car', 'truck', 'truck', 'bike', 'walk', 'car', 'van', 'bike', 'walk', 'car', 'van', 'car', 'truck' ];
 
+    let l2 = data.reduce((acc, item) => {
+      if(!(acc[item])) {
+        acc[item] = 1;
+    } else {
+         acc[item] =  acc[item] + 1;
+    }
+    
+    return acc;
+}, {})
+
+
   </script>
 </body>
 </html>
diff --git a/07 - Array Cardio Day 2/index-START.html b/07 - Array Cardio Day 2/index-START.html
index 4ca34c7536..fea5f807d5 100644
--- a/07 - Array Cardio Day 2/index-START.html	
+++ b/07 - Array Cardio Day 2/index-START.html	
@@ -29,14 +29,25 @@
     // Array.prototype.some() // is at least one person 19 or older?
     // Array.prototype.every() // is everyone 19 or older?
 
+  const any_adults = people.some(person => ((new Date()).getFullYear()) - person.year >= 19
+    );
+
+  const all_adults = people.every(people => ((new Date()).getFullYear()) - people.year >= 19);
+
     // Array.prototype.find()
     // Find is like filter, but instead returns just the one you are looking for
     // find the comment with the ID of 823423
 
+    const comment = comments.find(comment => comment.id === 823423);
+
     // Array.prototype.findIndex()
     // Find the comment with this ID
     // delete the comment with the ID of 823423
 
+   const index = comments.findIndex(comment => comment.id === 823423)
+
+console.log(comments.splice(index, 1));
+
   </script>
 </body>
 </html>