I need help solvong this

This is what i have so far, but im not sure what to put as the first limit

1. The Happy Pet pet food company produces dog and cat food. Each food is comprised of meat, soybeans and fillers. The company earns a profit on each product but there is a limited demand for them. The pounds of ingredients required and available, profits and demand are summarized in the following table. The company wants to plan their product mix, in terms of the number of bags produced, in order to maximize profit. Formulate the model for this problem in excel. Let X1= bags of Dog food to produce X2= bags of Cat food to produce