An optical double is an illusion—the stars are at vast distances from each other and are not actually orbiting each other—whereas in a visual binary, the stars are actually orbiting each other. its total energy output into all space
ask some one who knows
you could ask a classmate
ask your mom dad or who ever you live with
<em>Hope this helps</em>
Answer:
14
Explanation:
Well if you see 15-8 is what we will have to do = 7 and 7+7 = 14.
