Steps for

$\backslash$table$[[\backslash$table$[[$FACEBOOK INC.$],[$Consolidated Statement of Income$]]],[$For Year Ended December $31,$ $ millions,$2018],[$Revenue$,$$$55,838],[$Costs and expenses,$],[$Cost of revenue,$9,355],[$Research and development,$10,273],[$Marketing and sales,$7,846],[$General and administrative.,$3,451],[$Total costs and expenses.,$30,925],[$Income from operations,$24,913],[$Interest and other income $($expense$),$ net.,$448],[$Income before provision for income taxes,$25,361],[$Provision for income taxes,$3,249],[$Net income,$$22,112]]$

FACEBOOK INC.

Consolidated Balance Sheet

At December $31,$ $ millions

$2018$

$2017$

Current assets

Cash and cash equivalents. $..........................$ $$10,019$ $$8,079$

Marketable securities $............................31,09533,632$

Accounts receivable, net. $..........................71,5875,832$

Prepaid expenses and other current assets $...........1,7791,020$

Total current assets $.............................50\mathrm{.}40,480$

Property and equipment, net $..........................24,68313,721$

Intangible assets, net $..............................1,2941,894$

Goodwill $.........................................18,301,18,221$

$18$

Other assets $...............................................................\frac{2,576}{\text{\$}97,334},\frac{2,135}{\text{\$}84,524}$

Total assets $.....................................$

Current liabilities

Accounts payable $q,$

Partners payable. $q,$

Accrued expenses and other current liabilities.

Deferred revenue and deposits. $.$

Total current liabilities $................................$

Other liabilities $q,$

$ $820$

Total liabilities. $q,$

Stockholders' equity

Common stock and additional paid$-$in capital $.q,$

Accumulated other comprehensive loss.

Retained earnings $...........................$

Total stockholders' equity. $q,$

$42,906$

$(760)$

$41,981$

Total liabilities and stockholders' equity. $q,84,127$

$$97,334$

$

$ $380390$

$2,892$

$98$

$3,760$

$[3,760],[6,417]$

$10,177$

$40,584$

$(227)$

$33,990$

$74,347$

$$84,524$

Required

a$.$ Compute return on equity $($ROE$).$

b$.$ Apply the DuPont disaggregation into return on assets $($ROA$)$ and financial leverage.

c$.$ Calculate the profitability and productivity components of ROA.

d$.$ Confirm the full DuPont disaggregation: ROE$=PMATFL.$