Which steps could be used to solve this story problem? the librarian was organizing some books on some shelves. she had 200 fiction books, 100 non-fiction books, and 38 magazines. she decided to put all of the magazines in a box. she put an equal number of books on each of 6 shelves. how many books should the librarian put on each shelf? a. add together 200 and 100. then divide the sum by 6. b. subtract 100 from 200. then add 6 to that difference. c. multiply 200 × 6. then subtract 100 from that product. d. divide 200 ÷ 100. then add 6 to that quotient.