Answer:
180
Step-by-step explanation:
Since the type of trapezoid is not listed, I cannot really explain, sorry :/
Answer:
Divide both sides by -1/3, Apply distributive property, add 1/3 to both sides
Step-by-step explanation:
If its confusing just replace -1/3 with a simple number such as -1, to make it make sense.
The second choice is the answer