Aba's Bagel Company produces two products: bagels $($B$)$ and croissants $($C$).$ Each bagel requires $6$ ounces of flour, $1$ gram of yeast, and $2$ tablespoons of sugar. A croissant requires $3$ ounces of flour, $1$ gram of yeast, and $4$ tablespoons of sugar. The company has $6,600$ ounces of flour, $1,400$ grams of yeast, and $4,800$ tablespoons of sugar available for today's production run. Bagel profits are $20$ cents each, and croissant profits are $30$ cents each. What is the objective function?