### Home > A2C > Chapter 7 > Lesson 7.1.1 > Problem 7-15

7-15.

Since the situation describes an increase, the multiplier must be 1.04. In this situation, *x* will represent cost.

What will *x* be 15 years in the past?

Heather is correct, because a 4% decrease does not cancel out a 4% increase.