What is the solution of each equation 4z=20: z=5 z=2 z=7 z=6

Pranza plotted point a in the coordinate plane below.

Prism m and pyramid n have the same base area and the same height. cylinder p and prism q have the same height and the same base perimeter. cone z has the same base area as cylinder y, but its height is three times the height of cylinder y. the figures and have the same volume.

The difference of two numbers is 40. find the numbers if 0.3 parts of one number is equal to 37.5% of the other one.