context: ###List of Questions
  (1) Three letters picked without replacement from {p: 9, k: 2, j: 5}. Give prob of picking 1 p and 2 k.
  (2) How many millilitres are there in 1/10 of a litre?
  (3) Suppose -4*p - 699 - 413 = 0. Let s = p - -113. Let l = s + 117. Calculate the common denominator of l and 37.
  (4) Divide -137 by 1.
  (5) Solve 34*v - 29*v = -5*f + 20, -2*v = -3*f + 12 for v.
q_1: (1) Three letters picked without replacement from {p: 9, k: 2, j: 5}. Give prob of picking 1 p and 2 k.
q_2: (2) How many millilitres are there in 1/10 of a litre?
q_3: (3) Suppose -4*p - 699 - 413 = 0. Let s = p - -113. Let l = s + 117. Calculate the common denominator of l and 37.
q_4: (4) Divide -137 by 1.
q_5: (5) Solve 34*v - 29*v = -5*f + 20, -2*v = -3*f + 12 for v.