3. The City Library has 300 fiction books and 750 nonfiction books checked out. What is the ratio of fiction books to nonfiction books?
a. 750:300
b. 300:750
c. 300:700
d. 300:570

4.. Which of the following is a true proportion?
a. 8:20 = 30:10
b. 5:4 = 15:12
C. 4:5 = 15:14
d. 7:4 = 9:18

5. In the proportion 5:0 = 25:35, what is the missing term?
a. 5
b. 7
c.9
d. 14​