XYZ Company uses the high low method to analyze the mixed cost. According to the cost formula derived, the total fixed cost is $10,000. Total cost at the high level of activity was $70,000 and at the low level of activity was $25,000. If the low level of activity was 2,500 units, what was the high level of activity in units? Select one: O a. 10,000 O b. 7,000 O c. 10,500 O d. 11,000 oe. None of the answers given On the CVP graph, the next unit sold will increase sales by an amount equal to the 7 Select one: O a. Contribution margin ratio O b. Selling price per unit O c. Difference between contribution margin and fixed costs O d. Variable costs per unit O e. Selling price per unit minus the variable costs per unit