What is the common difference between successive terms in the sequence? 9, 2.5, –4, –10.5, –17, ...

1. –11.5
2. –6.5
3. 6.5
4. 11.5

answer by yourhope:

hi! : )

a farmer that lived in ancient egypt would most likely be barried in the sand, in the desert!

: )

first, let's see what the pattern is.

58 - x = 47

46 - x = 36

x = 9

so this means that the term after 25 is 25 - 9:

the next term in the sequence is 16.