context: ###List of Questions
  (1) Two letters picked without replacement from {l: 4, r: 1, d: 5}. Give prob of sequence dd.
  (2) What is 39570 to the power of 1/10, to the nearest integer?
  (3) Solve -4*p - 3*c = -8, -46 + 50 = 2*p - c for p.
  (4) Let k(h) = -h**2 + 5*h + 2. What is the least common multiple of k(4) and 3?
  (5) How many litres are there in 13006.92ml?
q_1: (1) Two letters picked without replacement from {l: 4, r: 1, d: 5}. Give prob of sequence dd.
q_2: (2) What is 39570 to the power of 1/10, to the nearest integer?
q_3: (3) Solve -4*p - 3*c = -8, -46 + 50 = 2*p - c for p.
q_4: (4) Let k(h) = -h**2 + 5*h + 2. What is the least common multiple of k(4) and 3?
q_5: (5) How many litres are there in 13006.92ml?