Student at Westbrook middle school hold green team meetings to plan ways to help protect the environment. This week there are 144 members at the meeting, which is 90% of the total great. What is the total number of green team members?

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?

How long does it take natsumi to clean up after she is done? table: .area time30. 245. 2.7560. 3.5

Can someone factor this fully? my friend and i have two different answers and i would like to know if either of them is right. you in advance. a^2 - b^2 + 25 + 10a