Show & Sell may advertise your products on local radio and television (TV), or in newspapers. The advertising budget is limited to $ 10,000 per month. Each minute of radio advertising costs $ 15 and each minute on TV costs $ 300. A newspaper ad costs $ 50. Show & Sell likes to advertise on radio at least twice as many times as it does on TV. Meanwhile, it is recommended to use at least 5 newspaper ads and no more than 30 minutes of radio advertising per month. Past experience shows that TV advertising is 50 times more effective than radio advertising, and 10 times more effective than in newspapers. Determine the optimal allocation of the budget to the three media.