5.7145 is bigger than the square root of 29 (which is 5.3851...)
-3 > x
The values that make this inequality true are those that are less than -3. The inequality does not include -3.
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.