1) I am wearing a sweater and a jacket I am cold. I am wearing a sweater and a jacket; because, I am cold. 2) The old dog is blind it is deaf. The old dog is blind; likewise, it is deaf. 3) Mix all the ingredients put the batter in the oven. Mix all the ingredients; then put the batter in the oven 3) To separate items in a list when commas alone would be confusing.

1) I am wearing a sweater and a jacket ; because , I am cold.

2) The old dog is blind ; likewise , it is deaf.  

3) Mix all the ingredients ; then put the batter in the oven.

the sentence that contains a restrictive clause is a.they decided to meet where the band was performing

explanation:

a restrictive clause is also known as an essential clause

with whom will you be coming to the party? this is written correctly.