Anybody who is good at math? ?

are the 3 points (2,3), (5,6), and (0,-2) on the same line? ? explain.

For the equations below which statement is true ?

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.

What is the approximate mark up percentage rate before m equals $1740 marked up from p equals $19,422