Question

http://prntscr.com/3gyknm

Answer 1

a

Answer 2

You only need to divide, 96.88/8 to obtain the dollar/pizza.

Answer 3

Do you still need help here? If not you can close this one. :))

Answer 4

It's just like a dimensional analysis.
To get how many pizza per dollar --> you just need to divide the number of pizza over the total amount of it in dollar.

On the other hand, to get how many dollar per pizza --> you just need to divide its total amount in dollar over the total number of pizzas. :)