The sum of -15x^2 -5x + 11 and another polynomial expression is -9x^2 + 3x -10. What is the other polynomial expression?

A. 24x^2 + 8x - 8

B. 6x^2 + 8x - 21

C. -24x^2 + 8x + 8

D. -24x^2 + 8x - 8

What is the square root of 45? (step by step working plz)

Answer asap ! the shortest path from point a to point b goes through a pond. to avoid the pond, you must walk straight 34 meters along one edge of the pond, then take a 90 degree turn, and again walk straight 41 meters along another edge of the pond to reach point b. about how many meters would be saved if it were possible to walk through the pond? a. 11 m b. 20 m c. 30.45 m d. 21.73 m

Arecipe uses 2 cups of sugar to make 32 brownies. how many cups of sugar are needed to make 72 brownies?