There are many complicated problems in the calculation of the consumption interest of the Bank of Communications Youth Power Credit Card. I hope the professionals of the Bank of Communications will analyze them. First, it is 25 days, but in some months, 3 1 day, 1, 3, 5, 7, 8, 10, 12 is 3 1 day, 4, 6, 9,/kloc.

Second,

1, yes.

2. On May 28th, the repayment was 95.3 yuan+125 yuan+1500 yuan *0.0072 yuan =23 1. 1 yuan.

3. No, because Cary 50 yuan can only repay the money spent on the designated consumption.

4.10000-135.8 = 9864.2 yuan.

Third, yes.