What is work shown for 4n - 9 = -9

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

Askateboard ramp is in the shape of a right triangle what is the height of the ramp

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g