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.

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 newspaper. Audience estimates, costs, and maximum media usage limitations are as shown: Constraint Audience per advertisement Cost per advertisement Maximum media usage Television 100,000 $2,000 10 Radio 18,000 $300 20 Newspaper 40,000 $600 10