A Boy Is Riding a Scooter Whose Wheels Are $5$ Inches in Diameter

Multiple Choice

A boy is riding a scooter whose wheels are $5$ inches in diameter. If the wheels rotate at $550$
Rpm, find the speed at which he is traveling in mi/h

A) $6.6 \text { min }$
B) $5.5 \mathrm { mih }$
C) $9.3 \mathrm { mi } / \mathrm { h }$
D) $11 \mathrm { mi } / \mathrm { h }$
E) $8.2 \mathrm { mih }$