Question

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?​

Answer 1

y=2.5x

Explanation:

You already know that the cost for 1 book is $2.50, which is also the rate of change. So you just basically multiply 2.50 by 5 to get 12.50.