Fatima surveyed a random sample of 80 students in her school about their favorite type of pet. Of the students surveyed, 20 chose cats as their favorite type of pet. If there are 597 total students at the school, what would be a valid estimate for the number of students whose favorite type of pet is a cat?

Last year, a state university received 3,560 applications from boys. of those applications, 35 percent were from boys who lived in other states. part a)how many applications did the university receive from boys who lived in other states? part b)applications to the university from boys represented 40percent of all applications. how many applications did the university receive in all? i don't how to do part b so me and plz tell how you got your answer