All I know is that a theory is a hypothesis that has been proven correct many times. So based on that if it is a scientific theory that has been proven correct many time by many people and now it is being challenged because maybe something new was discovered. That doesn't always mean it is not a good theory.
CD:2 at $16.99 each=$33.98 DVD:1 at $36.29 $33.98+$36.29= $70.27 6.75%*70.27=4.743225 round to the nearest tenth: 4.74 Andrian will pay <u>$4.74 as sales tax </u>