Write a related subtraction fact for 9+3=12. explain how the two facts are related

Average salary for a medical assistant is $31,220 which is a 20% income tax bracket how much money would they pay in income tax?

If anyone has done the algebra 2 chaos theory portfolio would you be wiling to me? i kind of know what i'm doing i just don't know if i'm doing it right.

In 2009, there were 1570 bears in a wildlife refuge. in 2010, the population had increased to approximately 1884 bears. if this trend continues and the bear population is increasing exponentially, how many bears will there be in 2018?