Why is it important to aline the decimal points before doing anything else

Ineed with this. the figure is made up of a square and a rectangle. find the area of the shaded region.

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?

Identify this conic section. x2 - y2 = 16 o line circle ellipse parabola hyperbola