First example, are those the only equations given?
Answer:
85° = ∠x {corresponding angles}
∠x = ∠1 {vertically opp. angles}
And, ∠2 + 103° = 180° ( co-interior angles)
∠2 = 180° - 103°
∠2 = 77°
Now, m∠1 + m∠2 = 85° + 77°
= 162°
Hemce, option A. is the right answer.
The answer would be 5, - 8
R²-6r-9s²+9 =
r(r-6) - 9(s²-1)
hello : here is a solution