diff --git a/04 - Array Cardio Day 1/index-START.html b/04 - Array Cardio Day 1/index-START.html
index 0dcfd00f40..4b24e7324d 100644
--- a/04 - Array Cardio Day 1/index-START.html	
+++ b/04 - Array Cardio Day 1/index-START.html	
@@ -38,29 +38,64 @@
     
     // Array.prototype.filter()
     // 1. Filter the list of inventors for those who were born in the 1500's
+    const fifteen = inventors.filter((inventor) => inventor.year >= 1500 && inventor.year < 1600);
+    console.table(fifteen);
 
     // Array.prototype.map()
     // 2. Give us an array of the inventors first and last names
+    const fullName = inventors.map((inventor) => `${inventor.first} ${inventor.last}`);
+    console.log(fullName);
 
     // Array.prototype.sort()
     // 3. Sort the inventors by birthdate, oldest to youngest
+    const ordered = inventors.sort((a, b) => a.year > b.year ? 1 : -1);
+    console.table(ordered);
 
     // Array.prototype.reduce()
     // 4. How many years did all the inventors live all together?
+    const totalYears = inventors.reduce((total, inventor) => total + (inventor.passed - inventor.year), 0);
+    console.log(totalYears);
 
     // 5. Sort the inventors by years lived
+    const oldest = inventors.sort((a, b) => {
+      const lastGuy = a.passed - a.year;
+      const nextGuy = b.passed - b.year;
+      return lastGuy > nextGuy ? -1 : 1;
+   });
+    console.table(oldest);
 
     // 6. create a list of Boulevards in Paris that contain 'de' anywhere in the name
     // https://en.wikipedia.org/wiki/Category:Boulevards_in_Paris
-
+    // const category = document.querySelector(".mw-category");
+    // const links = Array.from(category.querySelectorAll("a"));
+    // const de = links
+    //             .map((link) => link.textContent)
+    //             .filter((streetName) => streetName.includes("de"));
 
     // 7. sort Exercise
     // Sort the people alphabetically by last name
+    const alpha = people.sort((lastOne, nextOne) => {
+      const [aLast, aFirst] = lastOne.split(", ");
+      const [bLast, bFirst] = nextOne.split(", ");
+      return aLast > bLast ? 1 : -1;
+    });
+
+    console.log(alpha);
 
     // 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' ];
 
+    const transportation = data.reduce((obj, item) => {
+      if (!obj[item]) {
+        obj[item] = 0;
+      }
+      obj[item]++;
+      return obj;
+    }, {});
+
+    console.log(transportation);
+
   </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..1e8f4767b0 100644
--- a/07 - Array Cardio Day 2/index-START.html	
+++ b/07 - Array Cardio Day 2/index-START.html	
@@ -27,15 +27,38 @@
 
     // Some and Every Checks
     // Array.prototype.some() // is at least one person 19 or older?
+    // const isAdult = people.some((person) => {
+    //   const currentYear = new Date().getFullYear();
+    //   if (currentYear - person.year >= 19) {
+    //     return true;
+    //   }
+    // });
+
+    const isAdult = people.some((person) => (new Date().getFullYear() - person.year) >= 19);
+    console.log({isAdult});
     // Array.prototype.every() // is everyone 19 or older?
+    const allAdults = people.every((person) =>( new Date().getFullYear() - person.year) >= 19);
+    console.log({allAdults});
 
     // 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);
+    console.log(comment);
 
     // Array.prototype.findIndex()
     // Find the comment with this ID
     // delete the comment with the ID of 823423
+    const index = comments.findIndex((index) => index.id === 823423);
+    console.log(index);
+    // comments.splice(index, 1);
+    // console.log(comments);
+
+    const newComments = [
+      ...comments.slice(0, index),
+      ...comments.slice(index + 1)
+    ];
+    console.log(newComments);
 
   </script>
 </body>