Mae sold raffle tickets to steven and to theo. each ticket costs k dollars. steven bought 10 raffle tickets. theo bought 15 raffle tickets. which expression must be equal to the difference between how many dollars theo spent and how many dollars steven spent

Find the value of x for which abcd must be a parallelogram -9-6x x-30

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?

9/10 divide by -3/15 as a mixed number