X/3=1351/7
cross multiply
7x=4053
divide by seven on both sides
x=579
Only 1 time because your talking about division so u have to divide 8 into 8 which it only goes in 1 time:)
The volume of a cylinder is
V=hpr^2 in this case h=40, r=20/2=10, and we will approximate pi as 3.14 so:
V=40(3.14)(10^2)
V=12560 ft^3
After simplifying, the answer comes to x-y. I Hope this helped :).
Inches
centimeters would be too small
Good luck!
