Answer:
yes; 5
Step-by-step explanation:
To determine if the sequence is arithmetic, take the second term and subtract the first term
-7 - (-12) = -7+12 = 5
This would be the common difference if our sequence is arithmetic
Now take the second term and add the"common difference"
-7+5 = -2 This is our third term
-2+5 = 3 This is our fourth term
The sequence is arithmetic with a common difference of 5
