May you help me please :)
Extracted text: Find the shortest path in graph H from a to f using a tree diagram. The tree diagram below is missing some information. What is missing? What is the shortest path? b d9 b3 3 6 12 7 2 8 7 (f27 G ($26 CH e24 d16, f20, e18, f19, (a, b, d, e, f) = 19 d16, f20, e17, f19, (a, b, d, e, f) = 20 d15, f21, e18, f20, (a, b, d, e, f) = 20 a %3D d. d16, f20, e17, f26, (a, b, d, e, f) = 19