Billy walks 1/2 of a mile in 1/3 of an hour. What is Billy's walking speed? A. 2/3
B. 3/2
C. 1/6
D. 6 mph

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.