Access the $2021$ Form $10-$K of $2021$ Meta Platforms, Incorporated $($Facebook$),$ and answer the following questions.

Required:

a$.$ Using information from the company's Income Statement and Income Taxes footnote, what was the company's effective tax rate for $2021?$

b$.$ Using information from the Statement of Cash Flows, calculate the company's cash tax rate.

Note: For all requirements, round your final answers to $1$ decimal place.

c$.$ What does the company's Income Taxes note tell you about where the company earns its international income?

d$.$ What item creates the company's largest deferred tax asset?

e$.$ What item creates the company's largest deferred tax liability?

f$.$ How does the company treat interest and penalties related to its unrecognized tax benefits?

Required A

Required B

Using information from the company's Income Statement and Income Taxes footnote, what was the company's effective tax rate for $2021?$

Effective tax rate