and s2h you get why you got that question wrong?
They asked... "By how many times did the area increase''
That answer was '2', which is what I put.

They WANTED answer: 160
Which meant the question should of been ''What would the area be after the dimensions are doubled''
That means they wanted me to do 5*2 = 10 and 8*2=16 then 10*16=160
Which means they wanted me to double each dimension (5 and 8)
Which means they are fuckin' retards for not catching that printing mistake, that's a hella big ass typo.