Box of Chocolates Math Problem

Here is a set of problems the students were asked to solve today.  The problems below were solved by Joel and Allie.

Write a multiplication sentence and a repeated addition sentence for this array of chocolates.  4x7=28 7x4=28  7+7+7+7=28 4+4+4+4+4+4+4=28

If one-fourth of these chocolates have a marshmallow filling, how many have this filling?  7  

If 3/7 of these chocolates have a solid chocolate center, how many of these chocolates have this type of center?  12

Brayden bought 5 boxes of these chocolates.  140  He gave 55 of these chocolates to friends and family.  85  Brayden ate 10 of them himself.  75  He wants to build a pyramid with his chocolates.  He would like to make each row of his chocolates a multiple of five.  He would like each higher row of his pyramid to be 5 less than the row below it.  How many chocolates will he need to make his bottom row in order for him to use of his remaining chocolates?  5+10+15+20+25=75!!!