An ad campaign for a new snack chip will be conducted in a limited geographical area and can use TV time, radio time, and newspaper ads. Information about each medium is shown below. If the number of TV ads cannot exceed the number of radio ads by more than $4,$ and if the advertising budget is $$10000,$ and you will maximize the number reached and achieve an exposure quality of at least $1000,$ answer the question below. What are the constraints?