English is not my native language but I don't have any trouble with maths. On the other hand you seem to have trouble to answer a simple question. The only way MC and Lindsay to have the same father (blood related) is MC to be born after Dad met Lora which means that MC and Lindsay have over 13 years age difference. You could say that instead of question my English and math knowledge. Apart from that the story of this game is a bit confusing from the start, maybe it has to to with the ipatch.Is it the Maths that you’re having trouble with or English?