Dunbar Manufacturing's variable costs are 30% of sales. The company is contemplating an advertising campaign that will cost $55,000. If sales are expected to increase $100,000, by how much will the company's net income increase? Select one: a. $45,000 b. $30,000 c. $70,000 d. 15,000 Craylon Manufacturing produces a single product that sells for $100. Variable costs per unit equal $25. The company expects total fixed costs to be $60,000 for the next month at the projected sales level of 1,000 units. In an attempt to improve performance, management is considering a number of alternative actions. Each situation is to be evaluated separately. Suppose that management believes that a $10,000 increase in the monthly advertising expense will result in a considerable increase in sales. Sales must increase by to justify this additional expenditure Select one: a. 243 units b. 143 units c. 123 units d. 134 units