I'm so sorry I wish I knew the answer to your question
The answer is option c.
That is, the wrong step in step 6. It was written that the center of the circunference is the point (2.1). However, the general equation of a circumference is:
(X- (a)) ^ 2 + (Y- (b)) ^ 2 = r ^ 2
Where the point (a, b) is the center of the circle.
So for this case the point for the center is: (-2, -1)

1. Both are corresponding angles, hence they both are equal, so,

Ans. C) 2
2. They both are in interior corressponding, hence their sum is equal to 180°, so,

Ans. D) 7
3. They both are in interior corressponding, hence their sum is equal to 180°, so,

Ans. A) -10
4. Both are corresponding angles, hence they both are equal, so,

Ans. A) 6
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Answer:
(3, 1 ) is a solution
Step-by-step explanation:
To determine if the given points are solutions, substitute the x and y values into the left side of the equation and if equal to the right side then they are solutions.
(3, 1 )
3 + 4(1) = 3 + 4 = 7 = right side , then a solution
(2, 1 )
2 + 4(1) = 2 + 4 = 6 ≠ 7 ← not a solution
The correct answer would be t=1/3