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What is 20+(5 x 2/5 )+ 3 show your work

Parallelogram efgh is a rectangle. he = 6, and fe = 8. find ge: and find fj:

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.