Marks Corporation has two operating departments, Drilling and Grinding, and an office. The three categories of office expenses are allocated to the two departments using different allocation bases. The following information is available for the current period: Office Expenses Total Allocation Basis Salaries $ 45,000 Number of employees Depreciation 31,000 Cost of goods sold Advertising 65,000 Net sales Item Drilling Grinding Total Number of employees 1,000 1,500 2,500 Net sales $ 376,000 $ 564,000 $ 940,000 Cost of goods sold $ 129,200 $ 210,800 $ 340,000 The amount of the total office expenses that should be allocated to Drilling for the current period is: a) $55,780.
b) $84,200.
c) $93,200.
d) $141,000.
e) $600,000.

Rate of return, standard deviation, coefficient of variation personal finance problem mike is searching for a stock to include in his current stock portfolio. he is interested in hi-tech inc.; he has been impressed with the company's computer products and believes hi-tech is an innovative market player. however, mike realizes that any time you consider a technology stock, risk is a major concern. the rule he follows is to include only securities with a coefficient of variation of returns below 1.07. mike has obtained the following price information for the period 2015 through 2018:hi-tech stock, being growth-oriented, did not pay any dividends during these 4 years. a. calculate the rate of return for each year, 2015 through 2018, for hi-tech stock. b. assume that each year's return is equally probable and calculate the average return over this time period. c. calculate the standard deviation of returns over the past 4 years. (hint: treat this data as a sample.) d. based on b and c determine the coefficient of variation of returns for the security. e. given the calculation in d what should be mike's decision regarding the inclusion of hi-tech stock in his portfolio?