The answer is c because you have to add 5 to the other side which turns -4 it to positive 1
y is greater or equal to 1
Answer:

Step-by-step explanation:
For this you just have to make an equation and in order to do that you have to know that all these angles will equal 180°. Now we can write it out.

Now we combine like terms:

Add the 9 on both sides:

Divide the 21 on both sides:

Answer:
1 is false
2 is blueprints
Step-by-step explanation: