context: ###List of Questions
  (1) How many grams are there in 15.5017 tonnes?
  (2) Suppose 91*v - 74 = 90*v. What is the remainder when v is divided by 15?
  (3) Calculate -2 divided by -692.
  (4) Let z be (2/4)/(5/(-70)). Let a(s) = s**3 + 7*s**2 - 2*s - 6. Let k be a(z). Solve -5*i = -10, 3*i = 4*v - i + k for v.
  (5) Calculate prob of picking 2 t and 1 h when three letters picked without replacement from khktkhtk.
q_1: (1) How many grams are there in 15.5017 tonnes?
q_2: (2) Suppose 91*v - 74 = 90*v. What is the remainder when v is divided by 15?
q_3: (3) Calculate -2 divided by -692.
q_4: (4) Let z be (2/4)/(5/(-70)). Let a(s) = s**3 + 7*s**2 - 2*s - 6. Let k be a(z). Solve -5*i = -10, 3*i = 4*v - i + k for v.
q_5: (5) Calculate prob of picking 2 t and 1 h when three letters picked without replacement from khktkhtk.