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An equation where variables are used to represent known values—function notation true or false

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.

Aline with a slope of -7 passes through the points (u,0) and (8,-7) what is the value of u?