I’m not sure what i’m doing wrong the answer i get is not an option

So a property of parallelograms is that consecutive angles are supplementary, or add up to 180. Using this information, this is our equation:

Firstly, combine like terms:

Next, subtract 45 on both sides of the equation:

Lastly, divide both sides by 15 and your answer is x = 9, or D.

well my understanding of this question is they want you to use the y=14.1x -2.3 and put the coordinates they gave you onto the line segment of   y=14.1x -2.3

step-by-step explanation:

2.2°  

step-by-step explanation:

let θ = the angle of elevation.

tanθ =77/2020

tanθ = 0.038 12

      θ = tan⁻¹0.038 12

      θ = 2.2°