Compute the standard deduction for the following taxpayers.

If an amount is zero, enter "0"

b.	Ruby and Woody are married and file a joint tax return. Ruby is age 66, and Woody is 69. Their taxable retirement income is $14,900.	$
c.	Shonda is age 68 and single. She is claimed by her daughter as a dependent. Her earned income is $180, and her interest income is $785. $