Option B is correct
The recursive formula for the arithmetic sequence is given by:
d is the common difference.
n is the number of terms.
As per the statement:
Paige borrows $700 from her parents for a new computer.
She repays $100 the first month, then begins to repay her parents $75 per month.
Now, she only has to pay back after then, $700 - $100 = $600
then, begins to repay her parents $75 per month.
The sequence we get;
600, 525, 450, ....
This is the arithmetic sequence.
and d = -75
525-600 = -75
450-525 = -75 and so on...
Substitute the given values in  we have;
Therefore, the recursive formula models the total amount of money still owed is: