The production function for a competitive firm is Q = K.5L.5. The firm sells its output at a price of
$10, and can hire labor at a wage of $5. Capital is fixed at one unit. The profit-maximizing
quantity of labor is:
A. 2/5.
B. 1.
C. 10.
D. None of the answers are correct.

please explain in details

Self-interest achieve society’s economic goals because producers know which goods consumers want the most. as consumers and producers exercise their freedom to act in their own self-interest, markets will produce the desired goods at the lowest possible cost. consumers and producers both operate based on society’s economic goals. consumers know which goods can be produced at the lowest cost. there is a wide variety of desired goods and services in a market system because producers determine what to produce. consumers change their minds frequently. there is always a need to produce something new and improved. individual wants are diverse. what is produced is ultimately determined by consumers, because if the goods offered are not what consumers want, consumers will not buy them. producers, because they are driven by profits. producers, because they determine what to produce. consumers, because they participate in marketing surveys.

On january 2, well co. purchased 10% of rea, inc.’s outstanding common shares for $400,000, which equaled the carrying amount and the fair value of the interest purchased in rea’s net assets. well did not elect the fair value option. because well is the largest single shareholder in rea, and well’s officers are a majority on rea’s board of directors, well exercises significant influence over rea. rea reported net income of $500,000 for the year and paid dividends of $150,000. in its december 31 balance sheet, what amount should well report as investment in rea?

Selected t-account balances for bloomfield company are shown below as of january 31, which reflect its accounting adjustments. the firm uses a calendar-year accounting period, but prepares monthly accounting adjustments. suppliesjan. 31 bal. 1,800 1,800 jan. 31 bal. supplies expensejan. 31 bal. 1,920 1,148 jan. 31 bal. prepaid insurancejan. 31 bal. 1,148 1,148 jan. 31 bal. insurance expensejan. 31 bal. 164 164 jan. 31 bal. wages payablejan. 31 bal. 1,400 1,400 jan. 31 bal. wages expensejan. 31 bal. 6,400 6,400 jan. 31 bal. truckjan. 31 bal. 17,376 17,376 jan. 31 bal. accumulated depreciation -truckjan. 31 bal. 5,068 5,068 jan. 31 bal. a. if the amount in supplies expense represents the january 31 adjustment for the supplies used in january, and $1,240 worth of supplies were purchased during january, what was the january 1 beginning balance of supplies? $answerb. the amount in the insurance expense account represents the adjustment made at january 31 for january insurance expense. if the original insurance premium was for one year, what was the amount of the premium, and on what date did the insurance policy start? amount of the premium $answerthe policy began on answerjune 1july 1august 1september 1october 1november 1 of the previous year. c. if we assume that no beginning balance existed in either in either wage payable or wage expense on january 1, how much cash was paid as wages during january? $answerd. if the truck has a useful life of four years (or 48 months), what is the monthly amount of depreciation expense, and how many months has bloomfield owned the truck? answermonths