### Home > CAAC > Chapter 4 > Lesson 4.1.7 > Problem 4-65

4-65.

Given information:

*y* = number of tiles*x* = figure number

40 tiles

Substitute in the given information.

number of tiles = 6( figure number ) + 4

40 = 6*x* + 4

*x* = Figure 6

Check your answer.