Q: Did C pay for more than half of their living expenses and other support? My son is 20 & on SSI. He pays his fair share. "more than" meaning what?

I want to make sure I answer the yes or no correctly.  Since he pays his share, he should never pay "more than" that.  It seems a little tricky for those on disability being claimed so I want to make sure I do this correctly. Thank you for any help.