The number of books in kara's collection is divisible by 2,4,5 and 10 she has more that 11 books and fewer than 25 books. how many books does she have

David bought a poster for an art project. the poster is 2.7 feet wide and 3.9 feet tall. what is the area of the poster?

Atoy company is considering a cube or sphere-shaped container for packaging a new product. the height of the cube would equal the diameter of the sphere . compare the volume to surface area ratios of the containers. which packaging will be more efficient? for a sphere, sa =4πr²

How much dextrose 70% must be mixed with dextrose 5% to prepare 1,000 ml of dextrose 20%?