To represent the total sales of both Stephanie and Robert this week, we need to account for the number of pretzels they sold based on the hours they worked and the additional pretzels Robert sold.
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Sales by Stephanie: Since Stephanie sells 12 pretzels per hour, if she worked for \( S \) hours, she would sell: \[ 12S \]
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Sales by Robert: Robert sells 15 pretzels per hour, so if he worked for \( R \) hours, he would sell: \[ 15R \] Plus, he sold an additional 18 pretzels, so we add that to his total: \[ 15R + 18 \]
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Total Sales: The total sales of both Stephanie and Robert this week would then be the sum of their sales: \[ 12S + (15R + 18) \]
Combining those terms gives us the final expression: \[ 12S + 15R + 18 \]
Answer: \( 12S + 15R + 18 \)
2 answers