Answer: United States
Step-by-step explanation: Because threats the only independent variable the rest are dependent on others.
It would be great if you provided a question here..!
Answer:
D. 28°
Step-by-step explanation:
Since ∆FGH is congruent to ∆QRS, it follows that:

Thus:
(Substitution)
Collect like terms


Divide both sides by -1
x = 9

Plug in the value of x