Answer: n=4
Step-by-step explanation:

add 9 to both sides


divide both sides by -9

Brainliest please
Answer:
4
Step-by-step explanation:
The answer is 81
9*9=81
To check, you divide 81 by 9 which=9
You just add everything
20 + 11 + 9 + 9 + 4 + 4
= 31 + 9 + 9 + 4 + 4
= 40 + 9 + 4 + 4
= 49 + 4 + 4
= 53 + 4
= 57
So therefore ur answer is (A) 57 square yards.