I’ve already done these but I wanna be sure I got the right answer!!

Indicate the formula for the following conditions: p^c(n,r)=

What is the answer to the question 5x+2x

Marion has a bicycle that she is planning to take for a ride. the rim of the rear wheel lies 41 cm from the center of the wheel. the tire itself has a thickness of 3 cm. in order for marion to ride her bicycle 96,712 cm approximately how many rotations will the rear wheel make?