Select the three expressions that are equivalent to 9^4 Choose 3 answers

A. 9•4

B.9•9•9•9

C.9^8/9^2

D.(9^2•9^2)^1

E.(9^10/9^8)^2

Answer this question! 30 points and brainliest! only if you know the answer.

Ireally need subtract and simplify.(-y^2 – 4y - 8) – (-4y^2 – 6y + 3)show your work, ! i will mark you brainliest but you have to show your work.

Will mark brainlist what is the slope of the line passing through the points (-2, -8) and (-3,-9)? -7/5-5/71-1