What type of clause is found in the sentence hooray these sentences are not very difficult yet?

The clause "these sentences are not very difficult yet" is an independent clause.

Here's why:

* Independent Clause: A clause that can stand alone as a complete sentence. It has a subject (sentences) and a verb (are) and expresses a complete thought.

* Dependent Clause: A clause that cannot stand alone as a complete sentence. It relies on an independent clause for its meaning.

In this case, "hooray" is an interjection, which is not a clause. The clause "these sentences are not very difficult yet" expresses a complete thought and can stand alone, making it an independent clause.