Astudent took a system of equations, multiplied the first equaation by 2 and the second equation by 3, then added the results together. based on this, she concluded that there were no solutions. which system of equations could she have started with?

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?

Which expression and diagram represent “renee biked four times as far this month as last month”?

Math question.. plz me .. best answer all