Write the difference 20 - (-48) as a sum. then simplify.

At a sale this week, a desk is being sold for $213. this is a 29% discount from the original price. what is the original price?

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

Peter measures the angles in a triangle. he finds that the angles are 95, 10 and 75. is he correct? explain your answer