PLEASE HELP

factor 12n^2-n-20

On the first of each month sasha runs a 5k race she keeps track of her times to track her progress her time in minutes is recorded in the table

If on=8x-8,lm=7x+4,nm=x-5,and ol=3y-6

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.