How many subsets of three elements each exist in a set of six elements?

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?

What is fraction that is equivalent to 3/8

Solve 4 ln x=2ln25 a) x=5 b) x=25 c) x=625