What is the approximate area of a circle? use pi = 3.14.

a. 32.7 square centimeters
b. 65.2 square centimeters
c. 108.2 square centimeters
d. 339.6 square centimeters

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.

If the simple annual interest rate on a loan is 6, what is the interest rate in percentage per month?

Hurry if the population of of an ant hill doubles every 10 days and there are currently 100 ants living in the ant hill what will the ant population be in 20 days