The sum of three consecutive integers is 120. what are the integers.
find three consecutive integers such that the sum of the first and third equals the sum of the second and 21
find four consecutive even integers such that four times the sum of the first and second is 8 less tgab 7 times the fourth
and i have no idea about any of the steps

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.