How much to sell merchandise ?

it would be best to contact the flea market directly for that info , i would guess min maybe $15 to 75 + per day ....corner spaces are the highest. WED$20 per space$25 per space corner FRI$15 per space$15 per space corner SAT$30 per space$60 per space corner SUN$35 per space$75 per space corner Vendors who sell at The San Jose Flea Market more than three times a year are required by law to have and present a valid California Resale Permit

Don't know.

Depends on the both size i believe

Per Space and Per Corner Space WEDNESDAY $20 $25  FRIDAY $15 $15  SATURDAY $30 $60  SUNDAY $35 $75

I think it's$30 to rent a spot

It depends on what you're buying