8/10. Whee. For the tip question, I forgot about myself and instead divided the bill by four rather than five. I it were four, I'd have been correct. =P And for the brownie question, I chose 18x18 as I thought that were the box 15x15, the brownies actually wouldn't fit and you'd need to lop a bit off some of them. I really should have just gone with the most simple answer. Unless it said the inside was 15x15. Which serves me right for not reading the question and thinking too hard.

I like to think I'm good at maths, seeing as though I two lots of it at school. I get As, so I'll make the assumption I am. I enjoy doing maths as well, especially algebra. I lurve algebra. I could do it all day. =D I'm a maths nerd. Yays.