Answer:
What do you want to know
Step-by-step explanation:
Please tell me so I can help you!! :)
Let 
= -9, 
= -12 and so on.
-15 = -9 + (-6)
-15 = -9 + 2(-3)
Let -3 be the common difference, or <em>d</em>.
= -9 + n(-3)
= -9 - 3n
Here are the answers. Sorry if the writing isn’t very clear! I hope this helps!!
3. AC, AB
Step-by-step explanation:
A line segment consists lf a line with two endpoints(dots). AC is a line segment and so is CB but that isn't an option sl the next best thing is AB because it is also a line segment
