Worth 30 points ! need the answer asap

  see below

Step-by-step explanation:

The formula for the determinant of a 2×2 matrix is pretty simple. You can do all of these in your head. Of course, multiplying two negatives gives a positive result.

You will notice that the determinant is zero when two rows are the same. You will also notice that the determinant of a diagonal matrix is the product of the diagonal elements.

answer

point o.

step-by-step explanation:

from the sentence, "tomorrow morning, akiko will arrive an hour late" depicts a third person perspective because it doesn't use any pronoun to replace akiko, the subject of the sentence, and it is in singular form since akiko is only one person.