Coins Sacagawea

How much are the Sacagawea dollar proof coin worth? I have some 2000 D and a lot of 2000 P?

I’m trying to get rid of those by using them but people look a me in a weird way when I do. Then somebody told me they might be worth more than a dollar.
I never collected them. I just got them from the change machine at the post office while buying stamps.

Sorry but the proof 2000 Sac dollar coins were minted in San Francisco and so have an S mint mark. The ones you have are circulation strike coins not proofs, that were minted in Denver and Philadelphia. The P ones had a mintage of 767,140,000 and the D 518,916,000 so they are not rare or even scarce. The proofs were available only in proof sets and there were 4,047,904 minted. Your coins are not proofs but may have been polished by someone.

Sacagawea