To calculate the total earnings of the worker before going on vacation, we can follow these steps:
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Calculate the daily earnings:
- The worker earns $10 per hour and works 10 hours a day.
- Daily earnings = $10/hour * 10 hours = $100.
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Calculate the total earnings for 10 days:
- Total earnings for 10 days = Daily earnings * Number of days = $100/day * 10 days = $1,000.
Therefore, the worker earned $1,000 before going on vacation.
Based on the given response options, none of them correctly reflect the worker's total earnings of $1,000. If there's a mistake in the response options and you meant to provide different choices, the calculated total is $1,000.