What is the difference between 1261/4 and 782/3

Which of the following points is collinear with (-2,1) and (0,3)

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?

60 musicians applied for a job at a music school. 14 of the musicians play both guitar and drums, 28 play drums, 18 play the guitar. what is the probability that the applicant who gets the job plays drums or guitar?