context: ###List of Questions
  (1) Let r be 0/(0 + 2 + -1). Let t(q) = -q**2 + 4*q - 1. Let f be t(3). Suppose m - 8 = -f*i, r*i + i = 0. What is the units digit of m?
  (2) Calculate -8 + 3 + 5 - (3 + -1).
  (3) What is the next term in -4369, -4366, -4361, -4354?
  (4) Two letters picked without replacement from fffffffffffnf. Give prob of sequence nn.
  (5) What is 3/25 of a century in years?
q_1: (1) Let r be 0/(0 + 2 + -1). Let t(q) = -q**2 + 4*q - 1. Let f be t(3). Suppose m - 8 = -f*i, r*i + i = 0. What is the units digit of m?
q_2: (2) Calculate -8 + 3 + 5 - (3 + -1).
q_3: (3) What is the next term in -4369, -4366, -4361, -4354?
q_4: (4) Two letters picked without replacement from fffffffffffnf. Give prob of sequence nn.
q_5: (5) What is 3/25 of a century in years?