Torque

[applefiend95]

I know this is totally irrelevant but i figured one you people may be good at this:

Joe is using a torque wrench to tighten the head bolts his monster truck. The required torque is 80 foot-pounds. The wrench handle is 18” long. How much force does Joe have to apply to properly tighten the bolts? While he tightening, his wrench measures 29 foot-pounds at a particular point. He turns the bolt farther exactly 45 degrees. The measured torque is now 50 ft.-lbs. He turns the bolt farther exactly another 45 degrees. The measured torque is now 69 ft.-lbs. Predict how many more centimeters he must move the wrench handle to reach 80 foot-pounds of torque. Predict the torque at which the bolt will begin to break.

the final torque they need to have is 11 => 80-69=11
help please. thanks in advance