### Home > CCAA8 > Chapter 4 Unit 5 > Lesson CCA: 4.3.1 > Problem 4-100

4-100.

A tile pattern has

Work backwards from Figure 2 to find out the starting number of tiles.

Consider using a table, illustration, or graph to help you solve.

growth rate

*starting number of tiles*

To find how many tiles are in figure 100, substitute and solve for

*.*