Apply the ADDITIVE IDENTITY PROPERTY to the following expression: 15 + 0​

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

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

Can someone answer this question for me