context: ###List of Questions
  (1) Suppose 22 = 2*b + 4*f, 6*b - 2*b = -3*f + 29. Solve -d - 5 = -3*z, 3*z + 4*d + 0*d = -b for z.
  (2) Suppose 9 - 1 = 4*c. Let q be 147 + c + 5 + -2. Calculate the greatest common divisor of 19 and q.
  (3) Evaluate -4*12/(-2016)*-4.
  (4) How many millimeters are there in 3/50 of a meter?
  (5) Two letters picked without replacement from ppmipmgmqmgpzmm. What is prob of sequence qi?
q_1: (1) Suppose 22 = 2*b + 4*f, 6*b - 2*b = -3*f + 29. Solve -d - 5 = -3*z, 3*z + 4*d + 0*d = -b for z.
q_2: (2) Suppose 9 - 1 = 4*c. Let q be 147 + c + 5 + -2. Calculate the greatest common divisor of 19 and q.
q_3: (3) Evaluate -4*12/(-2016)*-4.
q_4: (4) How many millimeters are there in 3/50 of a meter?
q_5: (5) Two letters picked without replacement from ppmipmgmqmgpzmm. What is prob of sequence qi?