Answer:
U can refer this.... but im not sure... hope it's help ya!
You take the volume times it by the length then the width and finally the height which will give you the answer in cubic area
First one
limits of inegration are x=5 and 9
and
so
A is answer
2.
limits are x=0 and 8
so
answer is D
11/2 is equal to 10 1/2 pounds