The exchange rate between non-fixed currencies continually fluctuates. the chart below shows the exchange rate of the us dollar to the japanese yen over the course of six days. day $: ¥ monday 1: 88.6122 tuesday 1: 90.8305 wednesday 1: 87.5507 thursday 1: 91.2323 friday 1: 92.7120 saturday 1: 89.4477 mary has $311.75 to convert into yen. the currency exchange she is using charges a surcharge of 6% when converting currency. about how many more yen will mary receive if she makes her trade on the day with the most favorable exchange rate than if she makes her trade on the day with the least favorable exchange rate? a. ¥1,125 b. ¥1,513 c. ¥1,609 d. ¥1,706 select the best answer from the choices provided a b c d