What are the zeros of f(x) = x2+x-20?

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)

Which representation has a constant of variation of -2.5

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.