1/2bh=a what would be the first step to solve?

Write the system of equations represented by the matrix. 0 1 2 4 -2 3 6 9 1 0 1 3

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

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