# UCSS Math III 4B.2.4 Example 3

- Author:
- Walch Education

Paul works 40 hours a week at an electronics store. He receives a weekly salary of $220, plus a 3% commission on his sales of more than $5,000. Last week, Paul sold enough to earn his commission. Given the functions and , where represents the total amount of sales, which composition function represents his commission, or ? Use to verify the results.

- Find the composition function
and interpret the results in the context of the problem. - Evaluate the function found in the previous step using the test value
. - Find the composition function
and interpret the results in the context of the problem. - Evaluate the function found in the previous step using the test value
. - Based on these results, which composition function represents Paul’s commission,
or ?

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