managerial accounting

Hi, I have a test regarding my managerial accounting and I have the following questions ;

4- The methods to approximate cost functions are not ;________; managers frequently use two or more together to avoid ;________ in measuring cost behavior.

A.mutually ;exclusive; errors ; ; ; ; ; ; ; ;B. ;similar; duplication ; ; ; ; ; ; ; ;C. ;complementary; errors ; ; ; ; ; ; ; ; ; ;D. ;the ;same; duplication

5- ;Which of the following is an example of using cost information for operational ;control?A. ;selection of value ;minus−chain function to emphasize in corporate mission

B. ;evaluation of process improvement efforts in a manufacturing process C. ;determination of Cost of Goods Sold for the income statement D. ;identification of capital assets to acquire for expansion purposes

6-The statement of financial position is also called the ;________.
A. ;statement of cash flows ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;B. ;balance sheet C. statement of retained earnings ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;D. ;income statement

7- The acquisition of inventory on account will ;________.

A.increase assets and increase liabilities
B.decrease assets and decrease liabilitiesC. ;increase assets and decrease ;stockholders’ equityD. ;increase assets and increase ;stockholders’ equity