Which expression can be used to find the surface area of the following square pyramid?
3 2

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?

Emily is entering a bicycle race for charity. her mother pledges $0.90 for every 0.75 mile she bikes. if emily bikes 18 miles, how much will her mother donate?

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.