# math

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During each shift as a bus driver, Haley drives between 80 and 140 miles. She started the month with 4,500 miles driven.

What is a reasonable estimate for the number of total miles she has driven the bus, after 20 more shifts?

• math -

Assuming some average mileage, I'd say she drives about 110 miles each shift.

So, she'll have about 4500 + 20*110 = 4500 + 2200 = 6700 miles

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