1+ f < 7; 5,6,7
determine which number is a solution of the inequality.

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

The sum of two numbers is 86, and their difference is 20. find the two numbers

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?