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Home > MC1 > Chapter 4 > Lesson 4.1.2 > Problem 4-19

4-19.

The first multiple of 9 is 9(1) = 9.
The second multiple of 9 is 9(2) = 18.
The third multiple of 9 is 9(3) = ?

Look to part (a) for assistance.

This is the first number that appears in both of your lists.