### Home > CC1 > Chapter 3 > Lesson 3.1.1 > Problem 3-18

3-18.

If five notebooks cost

Try solving for the cost of one notebook first. With this value you will be better able to find the cost of three.

The cost of three notebooks is

.

3-18.

If five notebooks cost

Try solving for the cost of one notebook first. With this value you will be better able to find the cost of three.

The cost of three notebooks is

.