Answer:
4m + 4m + 6
3+3+5+3
10m+12+(-2m)-6
Step-by-step explanation:
Welcome
Answer:
1183
Step-by-step explanation:
Common difference:
d = 31 - 15 = 16
nth term:

Here, 


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Answer: D
The reason I say d is because the positive 3 is where the 9 is at on the y-axis