Combine like terms
-7y² + 6y² - 2y² = -3y²
4y + (-5y) - (-9y) = 4y - 5y + 9y = 8y
9 + 9 - (-2) = 9 + 9 + 2 = 20
-3y² + 8y + 20 is your answer
hope this helps
answers
................
Answer:
Height is 12 ft Diagonal is 13 ft
Step-by-step explanation:
I think this is right but im not sure 100% let me know if i'm wrong please.
8
2/ 1/4 = 8
