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9-88.

Anne began her commute home by driving at a constant rate of mph for minutes. She then got on the freeway where she drove at a constant rate of mph for minutes. She exited the freeway and immediately had to stop and wait for minutes due to road construction. She then completed her drive home by driving at mph for minutes. Her total commute time was one hour fifteen minutes. What was the distance of Anne’s commute? What was her average speed?

Distance traveled:

Average speed: