context: ###List of Questions
  (1) Suppose 39 = -2*d + 5*d. What is the greatest common factor of d and 52?
  (2) Evaluate ((-8)/10)/(6/30).
  (3) What is seventeen halves of a litre in millilitres?
  (4) Calculate prob of sequence zc when two letters picked without replacement from {c: 3, z: 7}.
  (5) Solve -2*p + 0 = 2*m - 8, -3*p - 28 = -5*m for m.
q_1: (1) Suppose 39 = -2*d + 5*d. What is the greatest common factor of d and 52?
q_2: (2) Evaluate ((-8)/10)/(6/30).
q_3: (3) What is seventeen halves of a litre in millilitres?
q_4: (4) Calculate prob of sequence zc when two letters picked without replacement from {c: 3, z: 7}.
q_5: (5) Solve -2*p + 0 = 2*m - 8, -3*p - 28 = -5*m for m.