Please help!! need answers ASAP

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 equation of the line that is parallel to the line with the equation y= -3/4x +1 and passes through the point (12,-12)

If f(x) = -5x + 1 and g(x) = x3, what is (gºf)(0)? enter the correct answer