You have been pricing headphones in several stores. Ihree stores have the identical price of $700 fach of these stores charges 12 percent APR has a 30 doy grace period, and sends out bills on the first of the monith. On further irvestegation, you find that Store A calculates the finance charge by using the average daily balance method, that Store B uses the acquated balance method, and that Store C uses the previous balance method. Assume you purchased the headphones on May 5 and made a $1