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A telephone company charges customers a certain amount for the first minute of a long distance call and another amount for each additional minute. A customer makes two calls to the same city-a 38-minute call for $1.99 and a 14-minute call for $0.79.
(a) Determine the cost for the first minute and the cost for each additional minute.
(b) If there is a federal tax rate of 3.3% and a state tax rate of 7.8% on all long distance calls, find, to the nearest minute, the longest call to the same city whose cost will not exceed $9.00.
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A club has 28 members, and 6 members must be selected to make a committee. Of the 28 members, 15 are men and the rest are women. How many ways can the 6 member committee can be selected if there are to be 4 men and 2 women on the committee?
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