The American Baker's Association reports that annual sales of bakery goods last year rose 15 percent, driven by a 50 percent increase in the demand for bran muffins. Most of the increase was attributed to a report that diets rich in bran help prevent certain types of cancer. You are the manager of a bakery that produces and packages gourmet bran muffins, and you currently sell bran muffins in packages of three. However, as a result of this new report, a typical consumer's inverse demand for your bran muffins is nowP= 9 -0.5Q.

If your cost of producing bran muffins isC(Q) = 4.5Q,determine the optimal number of bran muffins to sell in a single package and the optimal package price.

Enter your response for the optimal package price rounded to two decimal places.

Optimal package size:_ units

Optimal package price: $_