1+ 9/5 as fraction when finding the lowest common denominator

What is 1.5% of 120 or what number is 1.5% of 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.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.

Can you me with perpendicular lines and parallel lines?