<span> reflect the graph about the x-axis and translate 4 units down </span>

This result is actually true for any exterior angle. The exterior angle of a triangle is equal to the sum of the two remote angles, and above is a short proof of it.
Answer:
30
Step-by-step explanation:
30 + 30 = 60
3* 3 = 9
Add the 0s
30 * 30 = 900
I hope I helped!
Let me know if you need anything else!
~ Zoe