Write the set of all integers less than −20 in set-builder notation. The set-builder notation is {x| x∈Z and
}.

What is the value of 1/3× + 7x, when x =5

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?

Rewrite the equation x = 65 - 60p by factoring the side that contains the variable p.