context: ###List of Questions
  (1) Convert 82.82052um to millimeters.
  (2) Suppose -u = 3*w - 10, -3*w = -4*w - 2*u. Suppose -w*d + 15 = 3. Solve o = -d*o + 16 for o.
  (3) Let v = 19 + -34. Let z = -2 - v. Suppose -l - 2 + z = 0. What is the units digit of l?
  (4) Two letters picked without replacement from amstsasssaaustmmm. Give prob of sequence ut.
  (5) -12*-0.13
q_1: (1) Convert 82.82052um to millimeters.
q_2: (2) Suppose -u = 3*w - 10, -3*w = -4*w - 2*u. Suppose -w*d + 15 = 3. Solve o = -d*o + 16 for o.
q_3: (3) Let v = 19 + -34. Let z = -2 - v. Suppose -l - 2 + z = 0. What is the units digit of l?
q_4: (4) Two letters picked without replacement from amstsasssaaustmmm. Give prob of sequence ut.
q_5: (5) -12*-0.13