Posted by rfvv on Saturday, June 1, 2013 at 12:48am.

1. They also sell big, soft pretzels.
2. They also sell big and soft pretzels.
(Which one is grammatical?)

3. Try a taste of New York!
4. Try on a taste of New York!
(Are both grammatical?)

5. Q3: What cart sells drinks, hotdogs and pretzels? Does a hotdog cart sell all the items?

1 and 2 -- Both are grammatically correct, but #1 is more commonly used.

3 is correct; 4 is not

5 -- yes, a hotdog cart is correct.