The door of Mr. Smith's garage has 400 square feet of surface area. Twenty-five square feet of the door is glass. During a neighborhood baseball game, a ball is thrown wildly and hits the garage door. What is the probability that the ball hit the window?

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

maybe i can

52 \43 i don't know this i tried