Answer 3 took me forever to figure out.  I put in what I thought was the correct expression to find out how many pieces of pizza Sparky got, but when I tested it on the console it kept coming up with an alert: SyntaxError: Unexpected token ‘*’.  I then changed the expression 6 more times and still kept getting the error.  I got frustrated and took a break from it to think; and I went back in to study the console results closely, and then I realized, all the errors ended with ‘*’, telling me that I had an extra astric that didn’t belong, and then I realized off to the right that the console told me which line the error was on.  As soon as I removed the astric I went back in to put the original expression in that I had tried and it worked correctly and with the right answer.  I then took it a step further to write out another longer expression to show how I tested my answer.