please only do bottom question called #6

9. 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: Problems 597 Constraint Audience per advertisement Cost per advertisement Maximum media usage Television 100,000 $2,000 10 Radio 18,000 $300 20 Online 40,000 $600 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 $18,200, 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, and what is the total audience reached? boolson b. By how much would audience contact increase if an extra $100 were allocated to o odword the promotional budget? QUESTION 6 In 12.9a, suppose the problem is changed as follows: Instead of maximizing the total audience contact, we now want to achieve total audience contact of at least 800,000 Write down this new constraint for the total audience contact using the variable names T number of television advertisements R-number of radio advertisements O-number of online advertisements