diff --git a/04 - Array Cardio Day 1/index-START.html b/04 - Array Cardio Day 1/index-START.html
index 0dcfd00f40..f37b5e4877 100644
--- a/04 - Array Cardio Day 1/index-START.html	
+++ b/04 - Array Cardio Day 1/index-START.html	
@@ -38,29 +38,50 @@
     
     // Array.prototype.filter()
     // 1. Filter the list of inventors for those who were born in the 1500's
+    console.table(inventors.filter((it) => it.year >= 1500 && it.year < 1600))
 
     // Array.prototype.map()
     // 2. Give us an array of the inventors first and last names
-
+    console.table(inventors.map((it) => `${it.first} ${it.last}`))
+    
     // Array.prototype.sort()
-    // 3. Sort the inventors by birthdate, oldest to youngest
+    // 3. Sort the inventors by birthdate, oldest to youngest [descending]
+    console.table(inventors.sort((b, a) => a.year > b.year ? 1 : -1))
 
     // Array.prototype.reduce()
     // 4. How many years did all the inventors live all together?
+    console.table(inventors.reduce((acc, it) => acc += (it.passed - it.year), 0))
 
-    // 5. Sort the inventors by years lived
-
+    // 5. Sort the inventors by years lived [descending]
+    console.table(inventors.sort((b, a) => (a.passed - a.year) > (b.passed - b.year) ? 1 : -1))
+    
     // 6. create a list of Boulevards in Paris that contain 'de' anywhere in the name
-    // https://en.wikipedia.org/wiki/Category:Boulevards_in_Paris
-
+    // from source: https://en.wikipedia.org/wiki/Category:Boulevards_in_Paris
+    // get class ".mw-category" DOM element
+    let category = document.querySelector(".mw-category")
+    // get node with all "a" DOM elements
+    let linksNode = category.querySelectorAll("a")
+    // convert node to list & map each element to its text content
+    let blvdNames = Array.from(linksNode).map(it => it.textContent)
+    // filter list of boulevard names with those containing "de" in name
+    let deNames = blvdNames.filter((it) => it.includes("de"))
+    console.table(deNames)
 
     // 7. sort Exercise
-    // Sort the people alphabetically by last name
+    // Sort the people alphabetically by last name  [ascending]
+    console.table(people.sort((a,b) => a > b ? 1 : -1))
 
     // 8. Reduce Exercise
     // Sum up the instances of each of these
     const data = ['car', 'car', 'truck', 'truck', 'bike', 'walk', 'car', 'van', 'bike', 'walk', 'car', 'van', 'car', 'truck' ];
-
+    // create empty object & properties for each string & cumulative count
+    console.table(
+      data.reduce((obj, it) => {
+          if (!obj[it]) { obj[it] = 0 }
+          obj[it]++
+          return obj
+      }, {})
+    )
   </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..67433ff807 100644
--- a/07 - Array Cardio Day 2/index-START.html	
+++ b/07 - Array Cardio Day 2/index-START.html	
@@ -25,18 +25,25 @@
       { text: 'Nice Nice Nice!', id: 542328 }
     ];
 
+    // return person age
+    let getAge = (personObj) => (new Date()).getFullYear() - personObj.year
     // Some and Every Checks
     // Array.prototype.some() // is at least one person 19 or older?
+    console.log(people.some((it) => getAge(it) >= 19))  // true
     // Array.prototype.every() // is everyone 19 or older?
+    console.log(people.every((it) => getAge(it) >= 19)) // false
 
     // 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
-
+    console.table(comments.find((it) => it.id == 823423))
+    
     // Array.prototype.findIndex()
     // Find the comment with this ID
     // delete the comment with the ID of 823423
-
+    let index = comments.findIndex((it) => it.id == 823423)
+    comments.splice(index, 1)
+    console.table(comments)
   </script>
 </body>
 </html>