Answer: 22 feet per second
Step-by-step explanation:
Hi, the question asks for the speed rate in feet per second.
Since 1 minute = 60 seconds, 4 minutes x 60 = 240 seconds.
So, he ran 5,280 feet in 240 seconds.
To calculate the speed rate in feet per second we simply have to divide the distance (5280) by the time (240):
5280 feet / 240 sec = 22 feet per second
Feel free to ask for more if needed or if you did not understand something.