Calculate the distance between the points M=(-1,-2) and C=(-9, 2) in the coordinate plane. Round your answer to the nearest hundredth.

Pyotr tchaikovsky sporting goods operates on a 45% overhead based on the selling price, which results in an overhead of $65.34 on the newest version of an air hockey game set. if the air hockey game set costs pyotr tchaikovsky sports $49.32, find the selling price, the markup, and the net profit.