John used 6/8 of a cup of frosting to decorate some cakes. He divided all the frosting equally betweens 6 cakes how much frosting did john use on each cake

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.