OK so I have a simple fare I have to compute. There is a start zone and an end zone. There are 3 separate zones so 9 different charges. Plus there are charges for minutes too 0-4, 4-10, 10-20 and 20 to no limit. The user will input 3 parameters the start and end zone and the time. This would be a JS file. HELP

I am just trying to see how to start this and I know I need nested if then statements.