Answer: -3
Step-by-step explanation:
Answer:

Step-by-step explanation:
You have to divide the entire equation by 285 to get y alone.
Then, simplify the fraction to get 1/19.
<h2>Option (c) angle 9 </h2><h2>Option (d) angle 12 </h2>
= x° = ∠9 as they are corresponding angles .
= ∠5 = x° = ∠12 because angle 12 and angle 9 are vertically opposite angles due to which their value is equal . Since angle 5 = angle 9 , x° will also be equal to angle 12 .