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Help please

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.

Choose the more precise measurement. 26.4 cm or 8.39 cm

Graph the system of equations. {6x−4y=−244x−8y=−32 use the line tool to graph the lines.