Calculate the distance between point P and point Q.
(a) P(-2, 4), Q(5,9)

How many solutions does the nonlinear system of equations graphed bellow have?

Damon makes 20 cups of lemonade by mixing lemon juice and water. the ratio of lemon juice to water is shown in the tape diagram. lemon juice\text{lemon juice} lemon juice water\text{water} water how much lemon juice did damon use in the lemonade? cups

Mr. walker is looking at the fundraiser totals for the last five years , how does the mean of the totals compare to the median?