Final answer:
To model the bank balance, use the equation B = 300 + 200x, where B represents the bank balance and x represents the number of months.
Step-by-step explanation:
To model how much money you will have in your bank account, we can use an equation to represent the amount of money you have at each month. Let's start with the initial amount of $300. Since you are depositing $200 every month, the equation to model your bank balance, B, after x months is:
B = 300 + 200x
You can plug in different values of x to find out how much money you will have in your bank account after a specific number of months.