Answer:
49646
Step-by-step explanation:
9(2w−y)=21w−9y
First you multiply the numbers in the parenthesis by 9

subtract. 21w-18w=3w

add. -9y+9y=0

divide.

Final answer is 0.
Answer: 
Step-by-step explanation:

Plug in your values.

Square 1ft.

Plug this into a calculator or do it manually.

Answer: x=-7
Step-by-step explanation: hope this help :)
Answer:
B
Step-by-step explanation: