The information below is available for Don and Myla Hopeful, a married couple filing a joint return, for 2020. Don is 34 and Myla is 32 years of age and have no dependents. Required;

a. What is the amount of their gross income?

b. What is the amount of their adjusted gross income?

c. What is the amount of their taxable income?

d. What is the amount of their tax liability (gross tax), rounded to the nearest dollar?

e. What is the amount of their tax due or (refund due)?