No one answered the phone at this krogers Im just wanting to ask a few questions like do they have propane gas and how much is it

They are doing remodeling, so might be hard to get someone on phone. As stayed by others, they have it

Yes they have Propane Gas

Yes, they sell propane gas at about $2.69

Yes they have propane gas, not sure how much.

Yes, they have bottle exchange. Around 20 dollars, with the exchange.