A coordinate plane. A line goes through the point (6,–2) and has a slope of –3. What is the value of a if the point (a,7) lies on the line? a =

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.