Answer:
There is no common difference
Step-by-step explanation:
4 9 13 18
diff 5 4 5
Because the difference between 9 and 13 is 4
and the difference in the other terms is 5
there is no common differeence
Answer: 1/5
Explanation: 8/40 simplified in half is 4/20 then 2/10 then 1/5!