A hardware store will run an advertising campaign using radio and newspaper. Every dollar spent on radio advertising will reach 60 people in the "Under $25,000" market, and 50 people in the "Over $25,000" market. Every dollar spent on newspaper advertising will reach 70 people in the "Under $25,000" market, and 40 people in the "Over $25,000" market. If the store wants to reach at least 586,000 people in the "Under $25,000" market and 600,000 people in the "Over $25,000" market, how much should it spend on each type of advertising to minimize the cost?
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