Let t = the number of days the mouse travels Let D = the distance that the mouse traveled The mouse travels at a rate of 1.5 miles per day, so R = 1.5 mi/day
The equation is: Distance (D) = Rate (R) x Time (t)
If during a given month your average daily credit card balance is $800 and your yearly interest rate is 17%, then the interest you owe on your credit card for that month would be: $11.33