hope it helps you!!!!!!!!!!
Answer:
Well add the two number that you know and then do 180 minus that number you got when you added the first two numbers
Step-by-step explanation:
This is because a right triangle adds up to 180 degrees
it is the last option
-3 (-5) - 3y = -6
15 - 3y = -6
-3y = -6 + (-15)
-3y = -21
y = -21 / -3
y = 7
The value of y is 7.