Answer:
D.420
Step-by-step explanation:
400 *0.05 = 20 so adding it to 400 will equal to 420
Check the picture below.
since we know the endpoints of the diameter of the circle, then we can simply get the midpoint of those endpoints and that'd be the center,

The answer should be 5 over 4
Answer:
Option A. 
Step-by-step explanation:
we know that
The volume of the cylinder is equal

where
r is the radius of the base of cylinder
h is the height of the cylinder
we have


substitute

