Question 801507
The wheels on a certain bicycle have a radius of 13.2 inches. Suppose the wheels roll at 150 revolutions per minute along flat ground without slipping. How fast is the bicycle moving in miles per hour?
The question then hints to convert revolutions to radians per minute, but I am unsure how to do this and any help on what to do to get the answer would be greatly appreciated! Thank you!

bicycle  radius of 13.2 inches 

One revolution covers a distance 2pir = 2*pi*13.2 inches
150 revolutions pwr minute 150*2*pi*13.2 inches= 

12 440.707inches/minute
1 mile =63360 inches
1 hour = 60 minutes

12 440.707/63360*60)

0.00327 miles/hour