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FOR QUESTION 5

1. Angle 1 congruent to angle 4; given

2. Angle 1 supplementary  to angle 2; assumed from diagram

3. Angle 4 supplementary  to angle 3; assumed from diagram

4. Angle 2 congruent to angle 3; angles supplementary to congruent angles are congruent

5. Angle 3 congruent to angle 5; verticla angles are congruent

6. Angle 2 congruent to angle 5; substitution

FOR QUESTION 6

1. Angle 2 congruent to angle 3; given

2. Angle 2 congruent to angle 1; vertical angles are congruent

3. Angle 3 congruent to angle 4; vertical angles are congruent

4. Angle 1 congruent to angle four; substituiton (see statement #1)

Step-by-step explanation:

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step-by-step explanation:

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.