Answer:
2/9
Step-by-step explanation:
Simplify 80°/360°
When you have a negative exponent, you move it to the other side of the fraction to make the exponent positive.
For example:
or 
or y²
So:

Your answer is B
(1) -(5y - 2)= -5y+2
(2) -5 (3n + 1)= -15n - 5
(3) too long to do
your answer is d because the formula is Ax+By=C