context: ###List of Questions
  (1) Suppose 2*h - 2*n - 4 = -6, -3*n = -2*h - 5. Solve -5*b - 8 = -h*i, 3*b - 6*i + i = -20 for b.
  (2) Suppose 0 = -o - 4*o - 4*z + 85, -4*o + 5*z = -27. Let b = o + 15. Calculate the remainder when b is divided by 2 - 3 - 33/(-3).
  (3) What is 1/5 of a kilogram in grams?
  (4) Three letters picked without replacement from {h: 1, m: 12}. What is prob of picking 3 m?
  (5) What is -5 + -3 + -2 + 7 + 4?
q_1: (1) Suppose 2*h - 2*n - 4 = -6, -3*n = -2*h - 5. Solve -5*b - 8 = -h*i, 3*b - 6*i + i = -20 for b.
q_2: (2) Suppose 0 = -o - 4*o - 4*z + 85, -4*o + 5*z = -27. Let b = o + 15. Calculate the remainder when b is divided by 2 - 3 - 33/(-3).
q_3: (3) What is 1/5 of a kilogram in grams?
q_4: (4) Three letters picked without replacement from {h: 1, m: 12}. What is prob of picking 3 m?
q_5: (5) What is -5 + -3 + -2 + 7 + 4?