Write each expression in exponential form and find its value. 3 x 3 x 3

What are the relative frequencies to the nearest hundredth of the columns of the two-way table?

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

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.