$1
Prices can range where you get it or if you making it yourself, or if you buy from a bag. If you go with the Deli fresh in you local market pre made, it will run under $5 in a restuarant it is best...
$2.50
$4.00 it really depends on the brand
$1.97I've seen a bottle of ranch dressing go for 99 cents at the 99 cent store!