HP Inc. reports the following amounts in its 202010 - K report (all \$ in millions). A footnote disclosure provides the following additional information relating to the company's allowance for doubtful accounts. Use the information above to answer the following questions. a. What is the gross amount of accounts receivable at the end of years 2020 and 2019? b. Calculate the ratio of the allowance for doubtful accounts divided by gross accounts receivable at the end of years 2020 and 2019