Well, since it says it's congruent, it's congruent. EF overbar congruent to GH overbar.
Answer:
180°- 3α
Step-by-step explanation:
By angle sum postulate of a triangle.

Answer:
The initial value is 20.
Step-by-step explanation:
The initial value just means the value that the graph begins at (or the value of the y-intercept) so the initial value would be 20. Hope this helped :)
M is the dependent variable and D is the independent
M depends on what D is and D does not depend on another variable