A company has $10,290 available per month for advertising. Newspaper ads cost $140 each and can't run more than 20 times per month. Radio ads cost $370 each and can't run more than 31 times per month at this price. Each newspaper ad reaches 6650 potential customers, and each radio ad reaches 7900 potential customers. The company wants to maximize the number of ad exposures to potential customers. Use n for number of Newspaper advertisements and r for number of Radio advertisements. Maximize P = subject to 20 31