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:
<em>Middle class
</em>
Explanation:
James Bradshaw came up with the term middle class in a pamphlet of 1745. <em>The notion of the class is connected to wealth and income, but it includes education as well as the type of work you do.</em>
The middle class comprises between 25% and 66% of households in the United States.
D both b and c are correct
Hope this is the right Calderon your talking about lol.
Calderón served as National President of the party, Federal Deputy, and Secretary of Energy in Vicente Fox's cabinet. He served in the cabinet of the previous administration until he resigned to run for the presidency and secured his party's nomination.
