Is the Rule Number of Quality Management

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

Can any one me with the answers to these questions asap?

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