How old do you have to be to work at Pizza hut in maryland? -

I m 14, my birthday is in december and starting winter break I was considering working at pizza hut. I live in Silver Spring, Maryland(Montgomery County) and I don t know how old you have to be to qualify to work at Pizza Hut. Another place I m curious about how old you have to be to work at is Rite Aid and Dunkin Donuts..Also subway. ;-;

At least 16