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Home > CCA > Chapter Ch4 > Lesson 4.3.1 > Problem 4-100


A tile pattern has tiles in Figure 2 and increases by tiles for each figure. Find a rule for this pattern and then determine how many tiles are in Figure 100.

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 for and solve for .