If you are a prime member do you get a discount?

Yes. There is an app for your phone that you use at check out which gives you prime member sales prices

Prime members get prime exclusive savings plus any yellow sales tag you get an additional 10% off.

Yes...upload the whole foods app for free...put in your amazon info, show it to cashier. I will say that I spent over $200 and got a whopping $3.25 off.

Yes...only on certain marked items tho! And those items change from week to week.

I'm not sure what a prime member is, but I recommend you call the store