Cube root of 99 is 4.626 find the cube root of 792

An advertising firm has an old computer that can prepare a whole mailing in 6 hours. with the of newer model the job is complete in 2 hours. how long would it take the newer model to do the job alone?

How much orange juice do you need to make 2 servings of lemony orange slush?

The length of a rectangle plus its width is 24 cm. the area is 143 square cm. what are the length and width of the rectangle?