An electronic devise beeps every 4 seconds. Another devise beeps every 6 seconds if they both start beeping at the same time how many seconds will it be before the next time they beep together

Marion has a bicycle that she is planning to take for a ride. the room of the rear wheel why is 41 cm from the center of the wheel. the tire itself has the thickness of 3 cm. in order to marion to ride her bike 96,712 cm approximately how many rotations for the rear wheel make ~350 ~376 ~5133 ~15.9