Calculate the area of a sector of a circle that subtends an angle of 45° at the center of the circle, radius 14cm a) 11cm² b) 77cm²
c) 25cm² d) 56cm²

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.