The ratio of boys to girls in a school is 5:6
There are 240 boys in the school
How many students attend the school

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?

An ant travels at a constant rate of 30cm every 2 minutes.at what speed does the ant travel per minute

Rob filled 5 fewer plastic boxes with football cards than basketball cards. he filled 11 boxes with basketball cards.