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The functions are $\"\"$ and $\"\"$ .

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(a) If $\"\"$ , then the bonus is represented by $\"\"$ .

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Reasoning: The bonus is found after subtracting $\"\"$ from the total sales.

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(b)

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Find $\"\"$ .

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Replace $\"\"$ with $\"\"$ .

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$\"\"$

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Substitute $\"\"$ for $\"\"$ in $\"\"$ .

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$\"\"$ .

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If the one year sales $\"\"$ .

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$ .

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Therefore, the amount of bonus for one year with sales of $\"\"$ is $\"\"$ .

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(a) $\"\"$ ; The bonus is found after subtracting $\"\"$ from the total sales.

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(b) The amount of bonus for one year with sales of $\"\"$ is $\"\"$ .