What property describes the number sentence 6+0=6

Its worth 10000000 points need asap if you answer correctly ill mark brainliest

Which is f(5) for the function –2x2 + 2x - 3?

Hurrya vegetable garden and a surrounding path are shaped like a square that together are 11ft wide. the path is 2ft wide if one bag of gravel covers 9 square feet how many bags are needed to cover the path