Like the commenter above said, it’s 157 total runs. Think of a single as one run, a ground rule double as four runs, and a home run as six runs. Also, there are no foul balls, the field is an oval, and the entire area (including behind the batsman) is fair.

Not home runs, just runs.

I don't know much about baseball, so I can't explain but you want to learn basic things, there is " jomboy cricket explained in baseball terms".