Arecipe calls for 12 cups of blueberries to make 7 jars of blueberry jam. what is true about the number of cups of blueberries in each jar?

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.