The function and the first value stated for x are confusing.
Doing some research, I found that the problem is to evaluate the function

for x = - 1 and x 2.
The solution is:
1) For x = - 1

2) For x = 2
So what you need to do is find the volume and divide it by 2.
Answer:
5x=15
Step-by-step explanation:
5pounds times the price per pound (x) equals $15
Answer:
98
Step-by-step explanation:
147/3=49x2=98