The area of a rectangle is the width times the length:

The perimeter is twice the sum of the dimensions:

Answer:
n < - 6
Step-by-step explanation:
Do - 42 / 7 to get n
-42 / 7 = - 6
Check the picture below.
since the circle is centered at the (0,0) origin, and a point on it is at (0, -9), its radius is simple the distance between those two, or r = 9.
if the second point is also on the circle, it must also be 9 units away from the origin.

Answer:
x = 12
Step-by-step explanation:
(6x-2) + 20 = 90
6x-2 = 70
6x = 72
72 / 6 = 12
x = 12