Tencent Video Xiao Wang pays 9 yuan every month. Deduct the average daily rent according to the actual number of days in the month (deduct the full monthly fee on the last day). For example:

If there is 3 1 day in August, the average daily rent is 0.29 yuan, and the daily rent on 3 1 day is 0.3 yuan;

If there are 30 days in September, the average daily rent is 0.30 yuan, and the daily rent for 30 days is 0.30 yuan;

If there are 28 days in February, the average daily rent is 0.32 yuan, and the daily rent on the 28th is 0.36 yuan.

If there are 29 days in a leap month, the average daily rent is 0.3 1 yuan, and the daily rent for the 29th day is 0.32 yuan.