How much are 3 cards worth?

i just got a pack of NASCAR 1993 Maxx cards today in an unopened package. The only 3 cards you can see are Dale Earnhardt, Bill Elliot, and Alan Kulwicki. My guess is there is 200 cards. its never been opened and it looks valuable due to the fact Dale Earnhardt was the champion in 1993. The year before Alan Kulwicki won his first and only championship in his short 3 year Winston Career. He died in 1993 in a plane crash on the way to the spring race at Bristol Motor Speedway. If anyone might have a ballpark range please let me know.