Two skateboarders start a race at the same time. skateboarder a travels at a steady rate of 15 feet per second. skateboarder b travels at a steady rate of 22 feet per second. after 4 minutes, how much farther will skateboarder b have traveled?

So covert 4 minutes to seconds. Which would be 4 times 60 which would mean there would be 240 seconds. So you would multiply 15 x 240 = 3,600 feet. Then multiply 22 x 240 = 5,280 feet. 5,280 - 3,600 = 1,680 feet.

ANSWER:
Skateboarder B will have traveled 1,680 more feet over 4 minutes.