Answer:
53\40
Step-by-step explanation:
27-13=14
39+1=40 14-1=13 13+40=53
53\40
Answer:
168
Step-by-step explanation:
60+16+8 is 84
84 times 2 is 168
Mark me as brainliest if this helps!

It will form a arithmetic sequence as

- Common difference=6/3=2
- First term=a=3
- Last term=3(60)=180
- n=60-1=59
So
Summation




Option C
The answer is -77.I hope this helped you.