Can someone please help me with this of identifying the domain and range

I'll try my best, but I am a little rusty!

Domain (D) is all possible x values

Range (R)  is all possible y values

I don't know how your teacher taught you how to write the values, but here is how I do it

7. D: { all real numbers}, R: {-3 ≤ y ≤ 2}

8. D { -1 ≤ y } or { -1 ≤ y ≤ ∞ }, R: all real numbers

9. D: {2}. R: all real numbers

10: D: all real numbers, R: {-4}

11. D: {-2 ≤ x < 5}, R:  {-2 ≤ y ≤ 1}

12: D: {-4 ≤ x ≤ 5}, R: {-3 ≤ y ≤ 5}

13 D: { -∞ ≤ y < 2 }, R: {-∞ ≤ y < 0}

14: D: {-2 ≤ x ≤ ∞}, R: {-4 ≤ y ≤ ∞}

Hope I helped! Message me if you have any questions or concerns! :)

]

a. 74 degrees

step-by-step explanation:

because the lines through the side and the box in the corners shows that these are congruent triangles and since they are mirrored the 37 degrees is also mirrored so the answer is 37 * 2 which is 74.