103 is your answer and i gotta put 20 words so dont mind the rest HAKAKALLALAMANANAKALSKDUIWIW
I think 1,5 ? Might be very wrong but that’s my guess ♀️
Answer:
The number c is 2.
Step-by-step explanation:
Mean Value Theorem:
If f is a continuous function in a bounded interval [0,4], there is at least one value of c in (a,b) for which:

In this problem, we have that:

So 
----------




The number c is 2.
Aritmetic increases by the same number
geometric has 1 number that each term is multiplied by to get the next term
4 to 9 is 5
9 to 13 is 4
not same difference
9/4=13/9?
81/36=52/36?
no
neither aritmetic nor geometric