a. Given the graphs above, calculate the total fixed costs, variable costs per unit, and sales price for Firm A. Firm B's fixed costs are $120,000, its variable cost per unit are $4, and its sales price is $8 per unit. Round your answers to the nearest cent. Fixed costs: 5 Variable costs per unit: s Sales price per unit: s b. Which firm has the higher operating leveroge at any given level of sales? c. At what sales level, in units, do both firms earn the same operating profit? Round your answer to the nearest whole number. units