Final answer:
The sentence 'Cinderella went to the palace and lived happily ever after' is a compound sentence because it contains two independent clauses connected by a coordinating conjunction.
Step-by-step explanation:
The sentence 'Cinderella went to the palace and lived happily ever after.' is a compound sentence. This is because it contains two independent clauses ('Cinderella went to the palace' and 'lived happily ever after') that are connected by a coordinating conjunction ('and').
An independent clause is a group of words that contains a subject and verb and expresses a complete thought. A compound sentence is made by joining two independent clauses with a coordinating conjunction (for, and, nor, but, or, yet, so).
Learn more about sentence types