Are you Filipino ? kuya or ate
Plurals mean more than one of something
The infinitive is functioning as the predicate nominative. "Plan" is the subject (with Joel's as a modifier for "plan"). Since "is" is a linking verb, it is a predicate nominative and not a direct object.
It's a simile. He watched he rocky peaks that stretched to the sky. Where they ended they looked jagged, like shark teeth.