Write an equation in slope-intercept form for the line that has a slope of 12 and passes through the point (3, 20). Please help ASAP!!!

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.

Which coefficient matrix represents a system of linear equations that has a unique solution ? options in photo*

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?