The first two aren’t true, I can’t see the sign for the third one but since the other two aren’t correct I’d assume the right answer is the third choice.
Hey there!
Use this formula:

Remember this formula.
Now, let's solve the given problem.

Hope this helps you!
~Just a joyful teen

Hope this helps and have a fantabulous day! :)
The recursive formula
means that the next term in the sequence is 5 more than the previous one.
So, we know that we start from
, which means that the next term is

Similarly,

C is your answer! If you take away the 25.5 from 60 and divide that my 2 your answer is 17.25!
The correct answer to your problem is 96