If G is the midpoint of FH find FG
fg=11x-7 gh= 3x+9
The greatest number he can spend on is $5 since he has $10 he will have $5 reamining.
A cycle in the graph below is HDGH.
A cycle is where a vertices, or corner, can be traced back to itself. HDGH starts with H and traces back to H on the same line.