In the multiplication problem at the right, A and B stand for different digits. Find A and B. PLEASE HELP ME ITS FOR MY GRADES! THANK YOU

In a school 2/3 of the students study a language of those who study a language 2/5 study french

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

20 solve 2(4 x + 3) < 5 x + 21. a) { x | x < 9} b) { x | x > -5} c) { x | x > -9} d) { x | x < 5}