The Westchester Chamber of Commerce periodically sponsors public service seminars and programs. Currently, promotional plans are under way for this year's program Advertising alternatives include television, radio, and online. Audience estimates, costs, and maximum media usage limitations are as shown: Constraint Television Radio Online 100000 18000 40000 Audience per advertisement Cost per advertisement Maximum media usage $1400 $600 $300 20 10 10 To ensure a balanced use of advertising media, radio advertisements must not exceed 50% of the total number of advertisements authorized. In addition, television should account for at least 10% of the total number of advertisements authorized a. If the promotional budget is limited to $21,200, how many commercial messages should be run on each medium to maximize total audience contact? What is the allocation of the budget among the three media? If required, round your answers to the nearest dollar. Let T = number of television spot advertisements R = number of radio advertisements O number of online advertisements Budget (5) TE R. 0 Total Budget = $ What is the maximum total audience that would be reached? Round your answer to the nearest whole number. b. By how much would audience contact increase if an extra $100 were allocated to the promotional budget? Round your answer to the nearest whole number