20% of your employees work part time. what fraction of the employees work part time?

Linda loans her friend $250 with a 5% monthly intrest rate. how much was the whole loan?

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Aremote-controlled boat can travel at 4 feet per second in calm water. the boat traveled 48 feet with the current, and then it traveled 16 feet against the current in the same amount of time. how fast is the current?