Answer:
compound-complex
Explanation:
A compound-compex sentence is one that comprises more than one independent clause and one or more dependent clauses. As you may already know, the dependent clauses are those that cannot send a message on their own, as they need a complement to make sense. The independent clauses, however, are the clauses that manage to send messages on their own.
In the question aciam we have an example of compound-compex sentence. That's because "Belle is a competitive horseback rider" is an independent clause, "she will be competing in the next World Equestrian Games" is more of an independent clause, while "which are held every four years" is a dependent clause.
3 different writing techniques could include alliteration, personification or foreshadowing.
This tells me that Ralph has a lot of weight on his back. Everyone depends on him which makes him stressed and not want to deal with anything. He doesn't want to be the leader. This moment foreshadow's that something is going to come up and Ralph needs to take the leader position.
Best of luck,

Think about it, 16 years old? You become a adult when you turn 18. You would also have to be more responsible because 18 is the age you're actions have huge consequences. If you're 16 the worst that could happen is that you get grounded!