Answer:
-69%
Step-by-step explanation:
1) Make Your Equation: 2.99x=2.07
2) Divide Each Side By 2.99: =0.69
3) Make 0.69 A Percent: 69%
4) But Since It Is Decreasing Make It Negative: -69%
15.620
use pythagorean theorm :)
(the 6 is pointless for this problem)