Answer:
An expansive understanding of powers granted to the federal government is the correct answer.
Explanation:
If it's only regarding the invention of a specific dental equipment, it'll be to inform. the student is preparing to share their knowledge on the dental drill.
to persuade is usually the purpose when there's a question or an argument being raised, and in this case, it doesn't sound like anyone would be against dental drills. dental drills is also a fairly dry topic, so it's doubtful that the student would be aiming to entertain. it isn't a demonstration because the student likely isn't giving a step by step how to in regards to using a dental drill.
Answer:
¿Cómo sabemos los porcentajes? ¿Hay una imagen?
Explanation:
The reason is because birth control is less expensive and easier for teens to get in many
other developed countries than in the United States. And teachers,
parents and physicians tend to be more accepting of teenage sexuality
and more likely to encourage use of contraception, said Sarah Brown,
chief executive of the Washington, D.C.-based National Campaign to
Prevent Teen and Unplanned Pregnancy.