Answer:
The volume of the pyramid is 33.33 cubic inches
Step-by-step explanation:
we know that
The volume of the rectangular bases pyramid is given by the formula

where
B is the area of the rectangular base of pyramid
h is the height of pyramid
we have

substitute

20% is 150 of 30!
Have a great day! :)
I think its $21 because since 72 was left over you subtract it from 240 and it leaves 168 which u divide by 8 and get $21
C = 2PIr
C = 2 * 3.14 * 3 = 18.84 cm