Aiko stands 5 m from a tree. at that distance, the angle of elevation from the ground to the top of the tree is 80°. approximately how tall is the tree?

Of four points are collinear, they are also coplanar

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?

Matt had 5 library books. he checked out 1 additional book every week without retuening any books. whats the matching equation