7.50 = 3 = 2.50 The price per book is $2.50. You can use the unit price to make a table of equivalent ratios. Cost ($) Comic Books 2.50 1 5.00 2 7.50 3 10.00 4 12.50 5 15.00 6 17.50 7 20.00 8 The cost of 5 comic books is $12.50. The cost of 8 comic books is $20.00. How can you use multiplication to find the cost of 5 comic books?​