Answer:
3 boxes
Explanation:
To find the answer for the problem consider the amount of friends and how many cookies they will receive
First multiply 5 and 7 to find the amount of cookies she needs
5 x 7 = 35
She needs 35 cookies but there are 12 cookies per box
36 / 12 is 3
We are using 36 because it is the closest number to 35 that 12 can go into
She needs to get 3 boxes in order for each friend to get 5 cookies
Hope I helped :]