Answer: The answer is $4.20
Step-by-step explanation:
Area = r^2 x PI
to find r take the square root of the area:
r = √100 = 10
The circumference of a circle is the diameter times PI.
The diameter is 2 times r = 2 x 10 = 20
The circumference = 20PI m
The answer is C.
The answer would be (7<em>x</em>+2)(<em>x</em>+2)
2 is the estimated product the exact answer is 2.83