Last year, debra opened an investment account with 8400. at the end of the year, the amount had increased by 21.5%. how much is this increase in dollars? how much money was in her bank account at the end of last year.

a. 74 degrees

step-by-step explanation:

because the lines through the side and the box in the corners shows that these are congruent triangles and since they are mirrored the 37 degrees is also mirrored so the answer is 37 * 2 which is 74.

let m = monomial

let t = trinomial

so, m times t = t.

monomial times a trinomial = another trinomial.