A hardware store will run an advertising campaign using radio and newspaper. Every dollar spent on radio advertising will reach 70 people in the "Gen X" market, and 70 people in the "millennials" market. Every dollar spent on newspaper advertising will reach 120 people in the "Gen X" market, and 20 people in the "millennials" market. If the store wants to reach at least 401,000 people in the "Gen X" market and 420,000 people in the "millennials" market, how much should it spend on each type of advertising to minimize the cost? Minimum amount spent on advertising (in dollars): Dollars spent on radio advertising: Dollars spent on newspaper advertising: