The steps below show the incomplete solution to find the value of x for the equation
6x − 2x − 5 = −6 + 21:
step 1: 6x − 2x − 5 = −6 + 21
step 2: 6x − 2x − 5 = 15
step 3: 4x − 5 = 15
which of these is most likely the next step?
4x=10
4x=3
4x=45
4x=20

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.