Answer:the dimensions of all sides are 15 and 15 then add 5 because it said to and you would get 20 and 20 witch all together is 70 feet of fencing
Step-by-step explanation:
The answer would be B because it's saying sum which means adding then it says less which means subtracting.
Step-by-step explanation:

Do what's in the parenthesis first. 5cubed + 2. Now you do the exponent, add and get 127
5th graders:
x 96 = 16
4th graders:
x 96 = 32
Remaining students: 96 - 16 - 32 = 48
2nd graders:
x 48 = 12
Answer: 12 students
*********************************************************************************************
here is a breakdown by grade level:
5th graders = 16, 4th graders = 32, 2nd graders = 12, all other grades = 36