Suppose that you can sell as much of a product (in integer units) as you like at $61 per unit. Your marginal cost (MC) for producing the qth unit is given by: MC=9q This means that each unit costs more to produce than the previous one (e.g., the rst unit costs 9*1, the second unit (by itself) costs 9*2, etc.). If fixed costs are $50, what is the optimal integer output level? Please specify your answer as an integer. If fixed costs are $50, what is the profit at the optimal integer output level? Please specify your answer as an integer. If fixed costs are $75, what is the optimal integer output level? Please specify your answer as an integer. If fixed costs are $75, what is the profit at the optimal integer output level? Please specify your answer as an integer