Answer:
7
Step-by-step explanation:
Answer: Jamie
Step-by-step explanation:
Bcuz I took the test and made sure it was Jamie
You are using an angle and proportional side lengths.
SAS Similarity
X + y = 40.....multiply by -4
4x + 6y = 180
-------------------
-4x - 4y = -160 (result of multiplying by -4)
4x + 6y = 180
------------------add
2y = 20
y = 20/2
y = 10 <===
x = 30