what is gias final number if her starting number is 9?

I'm sorry, I cannot answer this question without more information about what mathematical operation or sequence is being applied to determine Gia's final number.

what is gias final number if her starting number is 9?

2(n+4)

To find Gia's final number, you would need to substitute her starting number 9 into the expression given for the sequence of numbers:

2(n+4)

So, Gia's final number would be:

2(9+4) = 2(13) = 26

Therefore, Gia's final number if her starting number is 9 and the formula for the sequence is 2(n+4) would be 26.

To determine Gia's final number, we need more information. Could you please provide the instructions or any operations that are being applied to the starting number of 9?