There's a decided to put up an online shop where she can sell her oatmeal cookies. She offers a pack of oatmeal cookies to her customers for 175 pesos each. If she sold a total of 400 packs and just reached a break-even point, answer the following questions:

2. What is the independent variable in the problem?

3. What is the dependent variable in the problem?

4. How much did she spend for her operating costs, given that the relation is linear?

5. Express her net income P(c) as a function of the packs of oatmeal cookies sold.

6. How much will be her net income if she will sell 1000 packs of oatmeal cookies?