5. Due to the sluggish economy, the Bi-Wheels Company has experienced some difficulty in selling its bicycles. The following data relate to the current year: Required: 1. Compute Bi-Wheels' annual breakeven point, in both units and dollars. Also, compute the contribution margin ratio. 2. The manager believes that a $40,000 increase in advertising would result in a $120,000 increase in annual sales. If the manager is right, what will be the net effect on the company's operating income? 3. Refer to the original data. The vice-president in charge of sales is certain that a 10% reduction in selling price in combination with a $30,000 increase in advertising will cause sales volume to increases by 50%. What effect would this strategy have on operating income of the company? 4. Refer to the original data. In the following year, Bi-Wheels saved $5 of total variable costs per bicycle by buying parts from a different manufacturer. However, Bi-Wheels' rent and insurance increased by $5,600. The store sold 11,000 bikes. What was its operating income for the year