If I walk down a hall of 100 lockers and open every one, then walk back down closing every second locker, then walk along again 'toggling' every 3rd locker etc until I'm toggling every 10th locker, how many lockers are left open at the end

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?