#6-10 please and thank you

6. doo An example of a variable cost would be: a. Rent b. Sales salaries. Property taxes. Depreciation based upon machine hours. 7. a. The temporary account containing overhead costs: Can be allocated to Cost of Goods Sold at the end of the period. b. Can be allocated porportionately to Goods in Process, Finished Goods and Costs of Goods Sold at the end of the period. Can be listed as "Unallocated Inventory Costs" at the end of the period. d. Both "a" and "b". C. 8. Which statement below correctly discribes activity-based costing (ABC)? a. It is inexpensive to initiate. b. It can make good use of many cost drivers. It promotes equal distribution of costs among units produced. It helps to eliminate over-costing of low-volume, complex products. 9. a. An important concept used in incremental analysis is: Relevant cost and revenues. Opportunity Cost. Sunk Cost. All of the above are used in incremental analysis