What is the common difference between successive terms in the sequence?

0.36, 0.26, 0.16, 0.06, - 0.04, - 0.14, ...

-0.1

To solve this, subtract successive terms and see what happens:

0.26 - 0.36 = - 0.1

0.16 - 0.26 = - 0.1

0.06 - 0.16 = - 0.1

-0.04 - 0.06 = - 0.1

-0.14 - - 0.04 = - 0.1

Every successive term is obtained by subtracting 0.1 from the previous