Solve the problem. Chris and Mary are selling tickets at their class play. Chris is selling student tickets for $4.00 each, and Mary
selling adult tickets for $6.50 each. If their total income for 36 tickets was $194.00, how many tickets did Chris
sell?

An optical inspection system is used to distinguish among different part types. the probability of a correct classification of any part is 0.92. suppose that three parts are inspected and that the classifications are independent. let the random variable x denote the number of parts that are correctly classified. determine the probability mass function of x. round your answers to four decimal places (e. g. 98.7654). x f(x) 0 1 2 3

If the simple annual interest rate on a loan is 6, what is the interest rate in percentage per month?

Use the elimination method to solve the systems of equations. choose the correct ordered pair. 7x+4y=39