Martha Manufacturing Produces a single product that for $80. Variable costs per unit equal $32. The company expects total fixed costs to be $72,000 for the next month at the projected sales level of 2,000 units. In an attempt to improve performance, management is considering a number of alternative actions. Each situation is to be evaluated separately. a. what is the current breakeven point in terms of number of units? b. Suppose management believes that a $16,000 increase in the monthly advertising expense will result in a considerable increase in sales, Sales must increase by how much to justify this additional expenditure? c. Suppose that management believes that a 10% reduction in the selling price will result in a 10% increase in sales. If this Proposed reduction in selling price is implemented, operating income will change by how much