Jamal is buying ingredients to make a large batch of granola to sell at a school fair. he buys 3.4 pounds of walnuts for $4.65 per pound and 2.1 pounds of cashews for $6.53 per pound. how much change will he receive if he pays with two $20 bills? he will receive

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?

Joanie wrote a letter that was 1 1/4 pages long. katie wrote a letter that was 3/4 page shorter then joagies letter. how long was katies letter

Alakefront cottage that is 30 feet high casts a shadow on the water. how long is that shadow if a 16-foot-high truck parked nearby casts an 8-foot shadow?