Let f(x)=2x^2 and g(x)=x^-2 find f(g(x))

Which of the following parabolas opens down?

Find the domain and range of the following function f(x) = 51x - 21+ 4

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.