context: ###List of Questions
  (1) Solve 9*a - 6*a + 9 = 0, 3*d + 3*a = -6 for d.
  (2) Let v(j) = j**3 + 7*j**2 + 3*j - 2. What is the remainder when v(-5) is divided by 18?
  (3) What is 30201.12 minutes in nanoseconds?
  (4) What is the difference between -0.026764 and 0.1?
  (5) Calculate prob of sequence ppy when three letters picked without replacement from {y: 2, p: 2}.
q_1: (1) Solve 9*a - 6*a + 9 = 0, 3*d + 3*a = -6 for d.
q_2: (2) Let v(j) = j**3 + 7*j**2 + 3*j - 2. What is the remainder when v(-5) is divided by 18?
q_3: (3) What is 30201.12 minutes in nanoseconds?
q_4: (4) What is the difference between -0.026764 and 0.1?
q_5: (5) Calculate prob of sequence ppy when three letters picked without replacement from {y: 2, p: 2}.