Answer: Total amount of credit or debit to his account after interest and service fear both applied is $811.3125.
Step-by-step explanation:
Since we have given that
Total balance in Azmir's account last month=$825
0.75% interest for monthly fee which is given by

Now, his balance becomes

Now, he has service fee of $7.50 , it will also deduct from it , which is given by

Hence, total amount of credit or debit to his account after interest and service fear both applied is $811.3125.