John Burroughs $6.50 from his friends to pay for snacks and $11. 75 from sister to go to the movies. How much money does he need to repay

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?

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?

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?