W + 3w = 90 is obviously wrong
Radius is half of diameter.
Circumference can be found using the equation C=2(pi)r or C=(pi)d.
r=radius, d=diameter
(pi) is about 3.14 or 22/7
Answer:

Step-by-step explanation:
well the values for x are from -2 to ∞
so we can write it as
