Name all the sets of -15 The real Numbers

The real numbers is one set, and so is the the set of integers since this set is { ..., -3, -2, -1, 0, 1, 2, 3, ...} composed of positive and negative whole numbers, along with 0.

The value -15 is also in the rational set because we can write it as a fraction of two integers:  -15 = -15/1

$450 is the answer.

step-by-step explanation:

30% of 450 = 135

450-135=315