Test: SAT Mathematics

1.

The formula above gives the monthly cost, , of running a food truck, where the driver works  hours and  gallons of gasoline are used for driving and operating the truck. If, in a particular month, it costs more than $3,500 to run the truck and no more than 220 gallons of gas were used, what is the minimum number of hours that the driver worked that month?

480

96

95

140

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