Answer:
m = -8
Step-by-step explanation:
Use the slope formula: 

m = -8
X-7 < -3
Remember that the less than or equal to has a line underneath it!
When it doesn’t look like a U anymore and is upside down
Looking at an equation than when x is negative
Answer:
20
Step-by-step explanation: -13 to 7 think about that. We have to add 13 to make it 0. Then we add 7. So 13 plus 7 is 20. Enjoy :)