HELP!!

1. When are you required to file a South Carolina income tax return? Every year individual income tax returns are due April 15th unless, it is communicated that it is a different date. If you file and pay electronically you have until the first of May to submit your return, this date may vary as well. 2. What items are added back to your federal taxable income for South Carolina purposes? 3. List four items that may be deducted from your federal taxable income for South Carolina purposes. 4. Explain the purpose of estimated tax payments. 5. How do you get an extension to file the South Carolina tax return? 6. If an extension is received, what is the due date of the South Carolina tax return? 7. If an extension is received, does that mean you arifallowed more time to pay the tax due? Explain