First, you need to collect the like terms; 7x + (-20 - 90). Next simplify; 7x - 110
answer; 7x - 110
Answer:
B I'm pretty sure..............
Answer:
The area is 40 units
Step-by-step explanation:

and you can use whatever value for π, some use 3.14, and round it as needed.
Answer:
$5.71
Step-by-step explanation:
40 divided by 7 equals 5.71428571, which should be rounded to 5.71.