context: ###List of Questions
  (1) Let u = -773/2 + 358. Let h be (-526)/66 + (-4)/(-12). Let w = h - -773/22. Find the common denominator of u and w.
  (2) Calculate prob of sequence aaaa when four letters picked without replacement from baaaabba.
  (3) What is 69/2 of a litre in millilitres?
  (4) Suppose 4*z = 4*w - 4, -2*w - w = 3*z - 9. Let c(u) = 59*u**3 + 2*u**2 - u. Let p be c(1). Suppose 5*l - l - p = 0. Solve l = m + w*m for m.
  (5) What is (-1)/((2/(-5))/((-20)/(-25)))?
q_1: (1) Let u = -773/2 + 358. Let h be (-526)/66 + (-4)/(-12). Let w = h - -773/22. Find the common denominator of u and w.
q_2: (2) Calculate prob of sequence aaaa when four letters picked without replacement from baaaabba.
q_3: (3) What is 69/2 of a litre in millilitres?
q_4: (4) Suppose 4*z = 4*w - 4, -2*w - w = 3*z - 9. Let c(u) = 59*u**3 + 2*u**2 - u. Let p be c(1). Suppose 5*l - l - p = 0. Solve l = m + w*m for m.
q_5: (5) What is (-1)/((2/(-5))/((-20)/(-25)))?