In baseball, the next batter waits in the on-deck circle. If the diameter of the on-deck circle is 5 feet, what is its approximate circumference? Use π=3.14 Group of answer choices

314 ft

78.5 ft

31.4 ft

15.7 ft

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.