3 is B
4 is D
I can figure out 5, Im kinda bad at plotting.
12
wow way to manage momey here sarah
The unit rate for 3 for $5 is around $1.70 or $1.60
The unit rate for 4 for $6 is $1.50
Answer:

Step-by-step explanation:
Given:
The given AP is.
12,0,-12,......

The first term of an AP 
Common difference 
We use the the formula for nth term of an AP.
for 87th term





Therefore, The 87th term of given series is -1020.