Answer:
Step-by-step explanation:
Because the price is constant we know the ratio of cost to number of books is constant.
x/14=13/4
x=14(13)/4
x=45.50
Leah paid $45.50 for 14 books.
2 12/19
Answer: 10.8 cm.
Step-by-step explanation: The diameter of a circle is 2*radius. 2*5.4 = 10.8 so the answer is 10.8 cm.