The sprockets and chain of a bicycle are shown in the figure. The pedal sprocket has a radius of 4 in, the wheel sprocket a radius of 2 in., and the wheel a radius of 13 in. The cyclist pedals at 25 rpm.

2x - 20 = 32 20 - 3x = 8 6x - 8 = 16 -13 - 3x = -10

Asphere has a diameter of 10 in. what is the volume of the sphere?

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers