A car repair shop charges an hourly rate plus a pickup and delivery fee

Matt and brian were solving a system of equations. they both noticed that the two lines had the same slope. brian said that because each line in the system had the same slope, the two lines had to be parallel, which meant the solution to the system was "no solution" matt disagreed, and said they should also look at the y-intercepts before determining how many solutions there were. who is correct?

When are two distinct non vertical lines parallel

Iwant to know what 3g+5h+4g-2h is my teacher is too selfish to tell us