Complete the two-way frequency table below, which shows the relationship between students who participate in band and drama in a particular high school. From a sample of 50 students, it is found that 17 are in band, 10 are in drama, and 6 participate in both.
Band Not in Band Total
Drama 6 4 10
Not in Drama 11 29 40
Total 17 33 50
Part A: How many students are not in band or drama?
Part B: How many students in this sample are in drama but not in band?
Part C: If there are 250 students in the entire school, how many students can the band instructor expect to participate in the first band practice of the year?