Question

BRAINLIEST TO BEST, SHOW ALL WORK BUT KEEP IT SIMPLE AND EASY TO UNDERSTAND

Answer 1

Answer:

Step-by-step explanation:Your answer is 3.5To get this you simply subtract 2.5 from 6.Then subtract 6 from 9.5.Then you subtract 9.5 from 13.If you see where I am going with this, you should be able to figure out the answer.Make sure the answer is the same for all m.If incorrect please comment down below:

Answer 2

The common difference in an arithmetic sequence refers to the number that represents the difference between two terms in the sequence. 

When you look to the sequence you can see that from a term to other one the numbers are increasing, meaning that the common difference needs to be positive. To find the value of the common difference in an arithmetic sequence you have to select two terms. On this case 2.5 and 6, and 16.5 and 20.

Common Difference= 6-2.5
Common Difference= 3.5

Common Difference= 20-16.5
Common Difference= 3.5

After some calculations, you can conclude that the number representing the common difference in this arithmetic sequence is 3.5.