Find the area of the shaded sector of the circle. leave your answer in terms of pi.
(picture attached below)

answer choices:
a. (4 + 4(pi)) ft^2
b. (4 - pi) ft^2
c. (4 + pi) ft^2
d. (4 - 4(pi)) ft^2

you so much in advance! : )

Assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.