A survey asked 40 students if they play an instrument and if they are in band.
1. 25 students play an instrument
2. 20 students are in band
3. 20 students are not in band
Which of these table shows these data correctly entered in a two way frequency table?

Add, subtract, multiply, or divide as indicated. list any restrictions for the variable(s) and simplify the answers when possible. 1) x-2 / x+5 + 3x / 2x-1 2) x+6 / x-6 - x^2 / x+6 3) x+9 / x-4 + x+2 / x^2-11x+28 4) x / x^2-64 + 11 / 2x^2+11x-40 5) 5 / x + 11 / x-3 - x-4 / x^2+2x-15