26.270833 was not sure about the first one but the seconed one was 14
Answer:
f
Step-by-step explanation:
If 6 of the 13 books are new, then 7 of them are used. The ratio of new (6) to used (7) is
6:7 or 6/7
Ratio of all books (13) to used books (7) is
13:7 or 13/7
