220 students either walk or bus to school. 40% of students walk. 20% of students are
boys. 75% of the boys take the bus. How
many of the girls walk?

Which statements describe postapocalyptic fiction? check all that apply. it considers humanity and survival. it shows the results of a disastrous event. it focuses on laws and theories of science. it occurs after the end of one world or society. it highlights the role of technology on humanity. it investigates the impact that historical disasters had on people.