Area of shape please help

Weak battery is considered to be a part of routine a. inspection b. wear and tear c. maintenance d. check

What is the value of x in the following equation. -x ^3/2 = -27

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.