Help with selling baseball cards?

I am selling baseball cards at a garage sale, but have no experience with them and don't know anything about prices. I have 25 and the years are ranging from 1981-1991. The people on them are Jerome Walton, Lonnie Smith, Mike Devereaux, Tom Brunansky, Ramon Martinez, Dave Winfield, Casey Candaele, Tim Belcher, Carlton Fisk, Don Baylor, Jim Bibby, Tom Seaver, Gary Carter, Tom Glavine, Jose Rijo, Steve Yeager, Keith Moreland, George Foster, Kirk Gibson, Pete Incaviglia, Mark Grace, Jerry Browne, B. J. Surhoff, Mark Gubicza, and Chris Sabo. I also have an Atlanta Braves card that has its team standings in years '77-'86. I also have an M's logo sticker. Please suggest a price if I sell all of these together. Thanks for your help!