Apaper airplane can be made out of two different pieces of paper: a circular piece 10 inches wide and a square piece 11 inches wide. which piece of paper will provide the greater area for flight?

What is the value of x when x + 7 = 21?

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

The art class is planning to paint a mural on an outside wall. this figure is a scale drawing of the wall. width: 11 in length: 28 in unit rate: 1.5 ft per in. write the ratio of the area of the drawing to the area of the actual mural. write your answer as a unit rate. show that this unit rate is equal to the square of the unit rate 1.5 ft per in