To find the total miles Mr. Arnold drives in 60 workdays, we can start by determining how many miles he drives in one workday and then multiply that by the total number of workdays.
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Miles driven per day: Mr. Arnold drives 130 miles round trip for each day of work.
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Total miles for 60 workdays: Multiply the miles driven in one day by the number of workdays:
\[ \text{Total miles} = \text{Miles per day} \times \text{Number of workdays} \] \[ \text{Total miles} = 130 \times 60 \]
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Calculating the total: \[ 130 \times 60 = 7,800 \text{ miles} \]
So, the correct answer is 7,800 miles.
Among the responses listed, the correct calculation corresponds to 130 × 60 = 7,800 miles.