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A man rows a boat 490 feet upstream against a constant current in 14 minutes. He then rows 315 feet downstream (with the same current) in 7 minutes. Find the speed of the current and the equivalent rate at which he can row in still water.

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A stationery company sells two types of notepads to college bookstores, the first wholesaling for 40¢ and the second for 80¢. The company receives an order for 580 notepads, together with a check for $328. If the order fails to specify the number of each type, how should the company fill the order?

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