69.75
I hope this helped you out!!
Answer:
4. AB=4
Step-by-step explanation:
Transitive property is like substitution, or that's how I like to think of it. Since we have 2 common variables and 2 equations, we can "link them together". Replacing x with 4, you get AB=4.
An = a1 + (n-1)d
an = 27 + (n-1)(-6)