The following summarized data (amounts in millions) are taken from the September 27, 2008, and September 29, 2007, comparative financial statements of Apple Inc. , a manufacturer of personal computers, portable digital music players, and mobile communications devices, along with a variety of related software, services, peripherals, and networking solutions.

At September 30, 2006, total assets were $17,205 and total shareholders' equity was $9,984.

Required:
a. Calculate Apple Inc.'s working capital, current ratio, and acid-test ratio at September 27, 2008, and September 29, 2007. Round your ratio answers to one decimal place.
b. Calculate Apple's ROE for the years ended September 27, 2008, and September 29, 2007. Round your percentage answers to one decimal place.
c. Calculate Apple's ROI, showing margin and turnover, for the years ended September 27, 2008, and September 29, 2007. Round your turnover calculations to two decimal places. Round your margin and ROI percentages to one decimal place.
d. Evaluate the company's overall liquidity and profitability.
Optional continuation of Case 3.17'trend analysis
The following historical data were derived from Apple Inc.'s consolidated financial statements (in millions).

e. Calculate Apple Inc.'s total liabilities for each year presented above.
f. Are the trends expressed in these data generally consistent with each other?
g. In your opinion, which of these trends would be most meaningful to a potential investor in common stock of Apple Inc.? Which trend would be least meaningful?
h. What other data (trend or otherwise) would you like to have access to before making an investment in AppleInc.?

Amounts Expressed in Millions) For the Fiscal Years Ended September 27 Net sales. Costs of sales Net income Cash and cash equivalents.. Short-term investments. ..-. Deferred tax assets. .---..._.. 1,832 Goodwil Total assets Liabilities and Shareholders' Equity Non-curent liabilities.... Common stock, no par value. . Accumulated other comprehensive income... 2008 2007 2006 2005 2004 Net sales. Net income Cash, cash equivalenis, and $32,479 $24,006 $19,315 $13,931 8,279 266 1,328 8,261 7,428 5,063 4,834 3,496 1,989 short-term investrments Total assets Shareholders' equity 24,490 39,572 15,386 25,347 21,03014,532 10,110 17,205 9,984 5,464 8,039 11,516