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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.

What is the angle measure, or angle of depression, between this bird and the bird watcher?

Simplify the expression below -3(10x+4y)+6(6x-2y)