Please help!

Two wheel gears are connected by a chain. The larger gear has a radius of 6 centimeters and the smaller gear has a radius of 4 centimeters. The smaller gear completes 28 revolutions in 15 seconds. What is the linear velocity of each of the gears in centimeters per minute?

 

• The linear velocity of the smaller gear is 224π centimeters per minute. The linear velocity of the larger gear is 56π/15 centimeters per minute.

 

• The linear velocity of the smaller gear is 896π centimeters per minute. The linear velocity of the larger gear is 224π centimeters per minute. 

 

• The linear velocity of the gears is the same. The linear velocity is  896π centimeters per minute.

 

• The linear velocity is 896π centimeters per minute. The linear velocity of the gears is the same. The linear velocity is 56π/15 centimeters per minute