Lina ran 9/10 of a yard during one play of a football game. During the next play, she ran 2/3 of that distance. How many yards did she run?

What is the difference between regular convex and concave polygons

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

Which term describes the point where the perpendicular bisectors of the three sides of a triangle intersect?