A bicycle with 18in diameter wheels has its gears set so that the chain has a 6 in. Radius on the front sprocket and 4 in radius on the rear sprocket. The cyclist pedals at 180 rpm.

How do I find the linear speed of the bicycle in inches per minute 

how do I find the speed of the bike in miles per hour 

Please explain how to do this like I'm 5

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Kav10 Kav10
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