Extended Response  A BMX bicycle wheel has a circumference that is
76.92% of the circumference of a mountain bicycle wheel. The BMX bicycle wheel has a circumference of
62.8 inches.
a.   What is the radius of the BMX bicycle
wheel?
b.   What is the radius of the mountain bicycle wheel?
c.   The
mountain bicycle wheel makes 4 revolutions in 2 seconds. How fast is the bicycle moving?