7. [-/2.66 Points] DETAILS AUFEXC4 7.4.017. MY NOTES ASK YOUR TEACHER The given triangles are similar triangles. Use this fact to solve the exercise. Find the height of the building when x = 4 m, y = 8 m, and d = 8 m. Im Height 7 Shadow X 8. [-/2.66 Points] DETAILS AUFEXC4 7.3.040. MY NOTES ASK YOUR TEACHER You want to paint the walls of your bedroom. Two walls measure 16 ft by 7 ft, and the other two walls measure 18 ft by 7 ft. The paint you wish to purchase must be purchased in one-gallon cans and costs $17 per gallon. Each gallon will cover 400 ft of wall. Find the total amount you will spend on paint. $1 9. [-/2.66 Points] DETAILS AUFEXC4 7.5.009. MY NOTES ASK YOUR TEACHER Find the surface area of the figure when s = 2 m and / = 7 m. m2