Please help me with this homework show me how you get it and the answer

It’s asking for the volume of a cylinder so the equation for that is pi(r^2)h
pi=3.14
r=4 (r stands for radius, radius is half of the diameter; from the center of the circle to the outside) You get 4 from half of 8
h= 15 (h stands for the height of the cylinder)

So it would be set up as 3.14 x 4^2 x 15
Next step would be to solve….
4 squared (4x4) is 16. Now your left to solve 3.14 x 16 x 15 which equals
753.6
Hope this helps!