Suppose that you can sell as much of a product (in integer units) as you like at $68 per unit. Your marginal cost (MC) for producing the qth unit is given by:

MC=9q

MC=9q

This means that each unit costs more to produce than the previous one (e.g., the first unit costs 9*1, the second unit (by itself) costs 9*2, etc.).

Please specify your answer as an integer.

1. If fixed costs are $60, what is the optimal integer output level?
2. If fixed costs are $60, what is the profit at the optimal integer output level?
3. If fixed costs are $85, what is the optimal integer output level?
4. If fixed costs are $85, what is the profit at the optimal integer output level?