Sarah made $130 for 9 hours of work. at the same rate, how many hours will she have to work to make $165?

Can someone me out here number 4 plz

See attachment below and find the equivalent of tan(∠qsr)

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?