You deposit $500 in an account earning 5% interest. How long will it take for the balance of the account to be $525?

Molly shared a spool of ribbon with 12 people. each person received 3 feet of ribbon. which equation can she use to find r, the number of feet of ribbon that her spool originally had?

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

For the right triangle shown, the lengths of two sides are given. find the third side. leave your answer in simplified, radical form.