After jumping into the water to a depth of 5 feet below the surface, a deep sea diver continues to descend at a rate of 18 feet per minute. which of the following equations can be used to determine the depth, y, of the diver given the number of minutes, x, he has been diving?

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $36.98. find the probability that a randomly selected bill will have an amount greater than $173, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?