Hypodermis layer has the important function of anchoring the skin to the body. Hypodermis is the lowermost layer of human integumentary system.
That depends on the tax rate you pay taxes at. Charitable donations reduce your taxible income. If you donate $100 and your tax rate is 28% then you will get $28 dollars of your $100 donation back if you receive a refund or if you owe, you will have to pay $28 less on your federal return. There may also be special benefits at the state level for contributing to specific causes.
They get this name because donors' deductions are limited to 50% of their adjusted gross income. For example, if your adjusted income is $50,000 and you give $30,000 to a qualifying nonprofit, you can't claim your full charitable gift in the tax year in which you give. You can claim only up to $25,000. However, the other $5,000 isn't lost. You can claim the excess donation amount on your next year's tax return.