3. Your clients Betty and Joe (MFT) have a $140,000 gross income, a $100,000 taxable income and they owe $17,250 in federal taxes. What is there effective federal tax rate? a. 12.321% b. 17.250% c. 25% d. None of the above 4. The purpose of a use tax is to: a. Prevent unwanted social behavior such as smoking and drinking. b. Tax the extraction of natural resources. c. Prevent the avoidance of the sales tax through the purchase of items in other states with lower or no taxes. d. Tax gifts made in anticipation of beating the estate tax 5. Stan and Judy are married (MF]). Stan is age 66. Judy is age 62 and she is blind. What is the total standard deduction they will be allowed for the year? As you know the standard deduction for the year is $24,800 and the additional standard deduction is $1,300. a. $24,800 b. $26,100 c. $27,400 d. None of the above