Using the financial data for Nike and Adidas for the fiscal year 2020, perform the required analyses:

($ millions)	Nike	Adidas
Net sales	$37,403	$27,480
Cost of goods sold	$16,320	$12,432
Gross profit	$21,083	$15,048
Operating expenses	$10,230	$7,920
Operating income	$10,853	$7,128
Interest and other (income) expense	$500	$400
Earnings before provision for income taxes	$10,353	$6,728
Provision for income taxes	$3,108	$2,201
Net earnings	$7,245	$4,527

Required: a. Compute the gross profit margin, operating profit margin, and net profit margin for each company. b. Calculate the return on equity (ROE) and return on assets (ROA) for each company. Assume Nike's equity is $40,000 million and total assets are $90,000 million, while Adidas' equity is $30,000 million and total assets are $75,000 million. c. Determine the debt-to-equity ratio for each company. d. Compare the profitability of both companies based on your calculations. e. Perform a trend analysis for net earnings by comparing 2019 and 2018 data, which are $6,893 million and $6,245 million for Nike and $4,210 million and $3,980 million for Adidas, respectively.