Express $\dfrac{6}{\sqrt{245} 3\sqrt{125} 4\sqrt{45}}$ in the form $\frac{A\sqrt{B}}{C}$ where $A$ and $C$ are relatively prime integers, $C$ is positive, and $B$ is not divisible by the square of any prime. Find $A B C$.

Barney & noblet customers can choose to purchase a membership for $25 per year members receive 10% off all store purchases 1. how much would a member pay per year if he bought $50 worth of items each year? 2. write a slope-intercept equation that expresses how much a member pays per year using x to represent his purchases per year 3. how much would a member have to spend per year to pay off his membership fee?