From Denver yo Chicago =3in if the scale is 1in=300miles

In simplified exponential notation, the expression a^2•a^-3•a 1/a 0

Which graph represents the following piecewise defined function?

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.