Simplify. what is your answer 8x + 9d + 3x -5d a: 11x + 4d b: 11x + 14d c: 5x + 4d d: 15xd

Afootball is passed through the air and caught at ground level for a touchdown. the height of the ball (h) is given by h= -d² + 12d + 6, where d is the distance in feet the ball travels horizontally. how far from the player passing the ball will the ball be caught? 40 points! will mark brainliest!