45 (-27) = does anybody know what that is?

In the rectangle below ac=30 units what is de

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

In the sixth grade 13 out of 20 students have a dog if there are 152 sixth grade students how many of them have a dog