The waiter worked for 4 hours.
- The waiter earns $5 an hour.
- The waiter earned $108 in tips.
- The waiter made $128 in total.
- The earnings of the waiter, excluding tips, are total minus the tips.
- The earnings of the waiter, excluding tips, are $128-$108.
- The earnings of the waiter, excluding tips, are $20.
- The Earnings Rate is the amount for each fund computed for each business day that represents the net rate of gain or loss on the assets of that fund.
- The earnings of the waiter due to work = number of working hours * Earning rate
- 20 = Number of working hours * 5
- The number of working hours is 20/5.
- The number of working hours is 4 hours.
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