context: ###List of Questions
  (1) How many years are there in 43/4 of a century?
  (2) Let s be 3/(-3) - (-513296)/26. Let a = s + -19753. Let n = 3955/234 + a. Calculate the common denominator of -13/18 and n.
  (3) Calculate 8 - (0 + 7 + -4).
  (4) Solve 0 = 4*y + 5*t - 15, 17 = 4*y - t + 4*t for y.
  (5) Two letters picked without replacement from {v: 5}. What is prob of sequence vv?
q_1: (1) How many years are there in 43/4 of a century?
q_2: (2) Let s be 3/(-3) - (-513296)/26. Let a = s + -19753. Let n = 3955/234 + a. Calculate the common denominator of -13/18 and n.
q_3: (3) Calculate 8 - (0 + 7 + -4).
q_4: (4) Solve 0 = 4*y + 5*t - 15, 17 = 4*y - t + 4*t for y.
q_5: (5) Two letters picked without replacement from {v: 5}. What is prob of sequence vv?