We just need to express each part as an inequality.
We know that
• TV ads cost $600 per airing.
,
• Magazine ads cost $1200 per issue.
,
• The total advertising budget is $9,000.
,
• x = TV ads and y = magazine ads
An inequality that represents this budget restriction is

Additionally, we are only allowed to purchase up to 6 magazine ads. This means

At last, we are only allowed to purchase up to 7 TV ads. This means
