Answer:
The expression 150x−4.99x represents the monthly balance change....
Explanation:
The initial account balance = $1200
The expression 150x represents the deposit
4.99x represents the monthly fee
The final balance in an account that has a monthly fee and automatic monthly deposits is given by the expression 150x−4.99x+1200.
It is concluded that the expression 150x−4.99x represents the monthly balance change....