Sroufe Manufacturing intends to increase capacity by overcoming a bottleneck operation by adding new equipment. Two vendors have presented proposals. The fixed costs are $55,000 for proposal A and $80,000 for proposal B. The variable cost is $14.00 for A and $10.00 for B. The revenue generated by each unit is $20.00. a) The break-even point in units for the proposal by Vendor A-units (round your response to the nearest whole number). b) Tive break-even point in units for the proposal by Vendor B-unts (round your response to the nearest whole number)