A function includes ordered pairs (-2,0), (0,-1), (1,0), (3,8), and (5,24). Which point could not be apart of this function ?

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?

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Ebuka's monthly rent is $750. if ebuka pays the rent late, his landlord charges 4% interest per week that the payment is late. write a function that gives the total cost r(t), in dollars, of ebuka's rent if he pays it t weeks late.