Seven and seven thousandths.
Multiples of 8 are basically the result of counting by 8's. (Technically, multiples are a set of number which can be divided by a certain number without a remainder.)
The first 4 multiples of 8 are {

}.
Neither are true there are 2.9 grams or sugar in a carrot per serving and 14 grams of sugar per serving in a banana.
It's a parabolic curve, so quadratic is best