A new Visa card promotion quotes an APR of just 18.5%. It's compounded weekly. What is the EAR?

Enter your answer as aregular percent rounded to the nearest first decimal. Do not enter percent signs, dollars signs, or commas. Of course, you will be working with four decimals on intermediate calculations, but enter the number rounded to thenearest first decimal.

For example, if you calculated 3.9267%, you would enter 3.9. Or if you calculated a decimal of 0.06294, you would enter 6.3.