Welcome to Just a reminder from the team: don't share any personal information and don't click on any links. If a question/answer is asking for your information or contains a link or personal information, report it, so it can be deleted by the moderators!

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents

1 x=22.52

2: 65/39=604+39x

65x-39x=604

26x=604

x=604/26

×=23.23