Find the probability of prime or cube between 1 to 39

What is the similarity ratio of a cube with volume 729m^3 to a cube with volume 3375 m^3

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

Find the area of the region between a regular hexagon with sides of 6" and its inscribed circle.