Cual es el rádio y el diámetro de un círculo de 25 cm. ?

The quadratic function h(t) = -16.1t^2 + 150 models a balls height, in feet, over time, in seconds, after its dropped from a 15 story building. from what height in feet was the ball dropped?

Evaluate the expression for the given value of the variable. 5×(h+3) for h=7

Can someone me and plz do the problem