I need answers for the 3 questions. Also can you explain them.

# 9) If f and y are continuous with /(3) = 5 and lim,-3 2f(r) - g(2)] = 4, find g(3). # 13) Explain why f(x) = In |r - 2) is discontinuous at 2. # 26) Use continuity to evaluate lim,-, sin(r + sina)