What number divided by 4 is 1/5 of 100

Figure abcd is a parallelogram. if point c lies on the line x = 2, what is the y-value of point c

What is the length of the unknown leg in the right triangle ?

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.