A sari-sari store sells two types of detergent powder. One type(a) cost php 9.00 and the other type(b) cost php 7.00. They want to raise at least php 180.00 for detergents. How many pieces of each detergent must be sold to achieve her goal? ​

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.