context: ###List of Questions
  (1) 504 divided by 42
  (2) Calculate prob of picking 1 a, 1 x, and 1 j when three letters picked without replacement from {x: 3, a: 7, j: 8}.
  (3) Solve -2*o - 3*w = 13, 0*o - 4*o - 5*w = 21 for o.
  (4) Let w be (-92)/(-22) - 4/22. Suppose -w*j + 116 = -0*j. What is the remainder when j is divided by ((-6)/(-8))/(3/60)?
  (5) Convert 152.23146 months to years.
q_1: (1) 504 divided by 42
q_2: (2) Calculate prob of picking 1 a, 1 x, and 1 j when three letters picked without replacement from {x: 3, a: 7, j: 8}.
q_3: (3) Solve -2*o - 3*w = 13, 0*o - 4*o - 5*w = 21 for o.
q_4: (4) Let w be (-92)/(-22) - 4/22. Suppose -w*j + 116 = -0*j. What is the remainder when j is divided by ((-6)/(-8))/(3/60)?
q_5: (5) Convert 152.23146 months to years.