Runner a completes 12 laps around a track in 22 minutes. runner b completes 8 laps in 15 minutes. which runner had a greater average speed

Which equation matches the graph shown ?

The two cylinders are similar. if the ratio of their surface areas is 9/1.44 find the volume of each cylinder. round your answer to the nearest hundredth. a. small cylinder: 152.00 m3 large cylinder: 950.02 m3 b. small cylinder: 972.14 m3 large cylinder: 12,924.24 m3 c. small cylinder: 851.22 m3 large cylinder: 13,300.25 m3 d. small cylinder: 682.95 m3 large cylinder: 13,539.68 m3

The function f(x)= -(x+5)(x+1) is down. what is the range of the function?