Area of a circle = pi • r^2
We need to isolate for r.
A/pi = r^2
r = sqrt(A/pi)
r = sqrt(30.8/pi)
r = 3.1311251164
Diameter = 2r
Diameter = 6.26225023
Diameter = 6.3 m
<span>8x^2-8x-13 is the correct answer </span>
Answer:
($0.5 x 2) + ($1.25 x 3) + ($0.75 x 3) = $7
