Answer:
Complex
Explanation:
This sentence has a independent clause and a dependent clause. This is why this is a complex sentence.
Simple sentences only have one verb and one subject, so this is not simple, and compound sentences are combined with "because", "and", etc.
Hope this helps!
Usally if you run into your friend at the mall you are excited and start to shop but when your writing a letter to a university you are nervous you really care if you make a mistake but if you're around your friends no big deal if y ou mess up on that letter it may change your whole life
