First of all, since this is a math question, you should post this in the Mathematics section.
Secondly, call the smaller digit x - clearly, then, the larger digit is x+8. We know x is at least one, and x+8 is at most 9 (since otherwise x+8 would not be a digit). If x is greater than one, x+8 will be ten or more, but x cannot be less than one, so x must be one. As a result, our number has a tens digit of 1+8=9, so the number is 91.
Answer:
Appositive: a popular senior
Noun or Pronoun defined: President
Explanation:
Appositive is a phrase that renames another phrase. Both phrases are placed side by side separated by a comma. For example, if we say, Mrs. Kumar, the English teacher, is on leave today. "the English teacher" is defining Mrs. Kumar, so it is an appositive.
In the given sentence, "a popular senior" is defining or renaming "the student council president', so this is an appositive. The noun or pronoun which is defined is "The student council President".
I'd say the answer is C because that doesn't really narrow down what he is trying to write about. he needs a more complex question for research.
