In a recent survey at school, every student was asked to choose their favorite type of music. The circle graph shows the results. a. The school has about 1300 students. Predict the number of students at the school who chose Country or Techno. Round to the nearest person. b. Every student at the school was surveyed and the number of students at the school who chose Rock or Hip Hop is 650. Approximate the number of students who attend the school. Round to the nearest person.