PLEASE HELP MAJOR FOR BRAINLIEST!!

Answer:
A) 2.5π
B) 2112 rotations
Step-by-step explanation:
A) you use the formula 2πr since the diameter is 2.5 you know the radius is 1.25 and you plug it into the formlla to give you 2.5π
B) You just have to do 5280/2.5