What type of slots do they have? 10c, quarters, dollars?

Yes, all of these. Because they are digital, there are a few machines that have multiple options so you have to pay attention to the minimum bet signs carefully if you really want 1c or 5c per spin. Example: a machine may say it is a 1c slot but the fine print says that there is a 40c minimum.

All 3 and 1.00

From what I remember they had all three