Please help me I will give a brainiest to whoever gets it right

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 negative 3/9 times negative 2/8 ?

2x minus y equals 6, x plus y equals negative 3