a. How what Apple's research and development expense for fiscal year 2021? $ b. How much did Apple expect to collect from customers as of the end of fiscal year 2020? $ c. What was Apple's total depreciation and amortization expense for fiscal year 2019? $ d. How much cash did Apple use to pay dividends and dividend equivalents in fiscal year 2021?$ e. What was Apple's current ratio for fiscal year 2020? For this question, enter your calculated answer to one decimal place, e.g., x.x. f. What was Apple's operating profit percentage for fiscal year 2019? For this question, enter you calculated answer to one decimal place, e.g., x.x. % g. How much cash did Apple receive from issuing debt in fiscal year 2020? $ h. Apple reported gross margin of $98,398 (millions) for fiscal year 2019. How much of that gross margin was due to sales of Products? $ i. Apple reported basic EPS of $5.67 for fiscal year 2021. This value is computed as a numberator value of $ divided by a denominator value of