HELP PLEASE!!!!!! POINTS WILL BE GIVEN!!
1. It is impossible to buy a negative number of TV ads. Write an
inequality for this constraint.
2. It is impossible to buy a negative number of magazine ads. Write an
inequality for this constraint.

Information about project:
TV ads cost $600 per airing.
 Magazine ads cost $1200 per issue.
 You total advertising budget is $9,000.