Which cell structure is the outermost layer of a plant cell that is made mostly of cellulose? a. vacuole b. cell wall c. chloroplast d. cell membrane

Find the balance at the end of 4 years if 1000 is deposited at the rate of

Aheated piece of metal cools according to the function c(x) = (.5)x ? 7, where x is measured in hours. a device is added that aids in cooling according to the function h(x) = ? x ? 2. what will be the temperature of the metal after two hours?

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?