Abook club promise to send 8 books for $1 each of you join the club. after you revive the 8 books, you may select more books at a rate of $19.99 per book. if you spend a total of $87.96, how many extra books did you purchase?

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?

Can you me find the missing length. i attached an image.