Hoffman, Inc. adjusts its books each month but closes its books at the end of the year. The trial balance at March 31 before adjustments is as follows:

Debit Credit

Cash $11,000

Accounts Receivable 9,700

Supplies 1,380

Prepaid Insurance 3,440

Equipment 30,600

Accumulated Depreciation: Equipment $12,240

Unearned Service Revenue 6,900

Capital Stock 5,600

Retained Earnings 23,800

Dividends 1,640

Service Revenue Earned 19,590

Salaries Expense 8,200

Utilities Expense 470

Rent Expense 1,700

$68,130 $68,130

According to service contracts, $4,890 of the Unearned Service Revenue has been earned in March. The amount of Service Revenue Earned to be reported in the March income statement is:

a. $19,590

b. $24,480

c. $14,700

d. $23,690

Suppose that fixed costs for a firm in the automobile industry (start-up costs of factories, capital equipment, and so on) are $5 billion and that variable costs are equal to $17,000 per finished automobile. because more firms increase competition in the market, the market price falls as more firms enter an automobile market, or specifically, , where n represents the number of firms in a market. assume that the initial size of the u.s. and the european automobile markets are 300 million and 533 million people, respectively.a. calculate the equilibrium number of firms in the u.s. and european automobile markets without trade.b. what is the equilibrium price of automobiles in the united states and europe if the automobile industry is closed to foreign trade? c. now suppose that the united states decides on free trade in automobiles with europe. the trade agreement with the europeans adds 533 million consumers to the automobile market, in addition to the 300 million in the united states. how many automobile firms will there be in the united states and europe combined? what will be the new equilibrium price of automobiles? d. why are prices in the united states different in (c) and (b)? are consumers better off with free trade? in what ways?