PLEASE HELP ME I JUST NEED THIS QUESTION PLEASE ANYONE

The circumference of a circle is 5 pi cm. what is the area of the circle?

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.

Divide. –4.2 ÷ 6 = a –0.7 b 0.7 c –7 d 7 me