The company must consider the following resource limitations:

The budget limit for advertising is $$100,000.$

The television station has time available for $4$ commercials.

The radio station has time available for $10$ commercials.

The newspaper has space available for $7$ ads.

$5.$The advertising agency has time and staff available for producing no more than a total of $15$ commercials and$/$or ads.

Which of the following about the coefficients of a constraint is correct in the formulation of this problem?