Which expression is equivalent to 25 × 4?
a) 4 × 25
b) (20 + 4) × 5
c) 20 × 5 × 4
d) (20 + 5) × (20 + 4)

the circle one

80π/3 or about 83.775

step-by-step explanation:

since a cone is 1/3 of a cylinder, we need to find the base's area. since area = πr^2, we get 16π. then, multiplying this by 5, we get 80π. dividing by 3, since the cone's volume is 1/3 of that of a cylinder's, we get 80π/3.

hope this !