Identify the slope and y- intercept of the linear equation. y = -2x + 5

Slope:
y-intercept:

Solve the system of equations. y= 2x y= x^2 - 15

Amira is painting a rectangular banner 2 1/4 yards wide. the banner will have a blue background. amira has enough paint to cover 1 1/2 square yards of the wall. the school colors are blue and yellow, so amira wants to add yellow rectangles on the left and right sides of the blue rectangle. the yellow rectangles will each be 3/4 yards wide and the same height as the blue rectangle. what will be the total area of the two yellow rectangles?

If each bricks costs and he can only buy one brick how much will it cost him to get the material to put around the outside of his garden?