Abasketball hoop with a circumference of 56.52, what's the diameter ?

Which of the following expressions is equal to 2x^2+8

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

Pls the last one and it has to be like number 6