Question

Please help i can not figure it out

Answer 1

To solve this problem you need to figure out the volume of the sipping container, and the volume of the tissue box. 
39*19.5*19.5=14,829.75
6.5*6.5*6.5=274.63

In order to figure out how many fits you need to divide
14,829.75/274.63=53.99

The maximum number that you can fit is the box is 53.

Hope this helps