This one's way over me . Um yea first time I've ever posted something. please help. Idk lol

Question

this problem blows

Answer 1

b is 5, so 13%5 is 3

Answer 2

Which problem?

Answer 3

doing math in Ruby

Answer 4

what is the value of z ?
a=13
b=a-8
z=a%b

Answer 5

the negative was messing with me I just had a brain fart. but thanks bro I take this stuff super serious so thanks for the help

Answer 6

forgot a simple rule and now it just hit me I was looking at it completely wrong