so if u have 8 dogs and 7 lizards and some cats but in total u have 68 how many cats do u have in total

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.]

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

Need on this geometry question. explain how you did it.