No, uber is not to expensive.
No, use NJ transit
No
Best you can do is catch a NJ Transit bus from (just outside) TTN down into Trenton's train station. From there, you can get close to PHL, but the final leg calls for a short ride on SEPTA. If this sounds circuitous & time-consuming, as well as costly, it is. Wish I had better news for you.
I don't think so...
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