Caroline, age 66 and filing single as a dependent of another, received the following income items for the current year:

Social Security benefits (nontaxable) …………..$ 3,000

Pension benefits (taxable) ………………………........6,450

Interest income (taxable) ……………………………….2,050

Total ………………………………………………….......….$11,500

Caroline’s tax liability (before credits) is $590.

a. What is Caroline’s tentative tax credit for the elderly (before the tax liability limitation is applied)?

b. What is Caroline’s allowable tax credit?