What is the prime factorization of 21? Enter your answer as a product of prime numbers, like 2 x 3,
or as a single prime number, like 17.

Mary works for a company that ships packages and must measure the size of each box that needs to be shipped. mary measures a box and finds the length is 7 inches, the width is 14 inches, and the height is 15 inches. what is the volume of the box? [type your answer as a number.]

Planning for the possibility that your home might get struck by lighting and catch on fire is part of a plan for ?

Cora bought a package of erasers. there are 4 pink erasers and 12 blue erasers. what is the ratio of pink erasers to blue erasers?