Explain why zero is considered its own opposite.

Jackson drew 4 hearts and 29 circles. what is the ratio of circles to all shapes?

An energy plant is looking into putting in a system to remove harmful pollutants from its emissions going into earth's atmosphere. the cost of removing the pollutants can be modeled using the function c = 25000p/100 -p what is the vertical asymptote?

If you answer right ill give brainliest, : )