Your answer should be 12.57
<span>Bees see “primary colors” as blue, green and ultra violet. <span>They can distinguish yellow, orange, blue-green, violet, purple, as combinations of their three primary colors.</span></span>
So, let's say you have -5, the opposite of that is 5,opposite numbers always have the sum of 0, just are something about money where you have 2 opposite numbers