Given the point A(6,3) lies on the graph of g(x), and the point B(6,5) lies on the graph of h(x), where h(x)=(f∘g)(x), the corresponding point that lies on the graph of f(x) must be

Tim open up a new saving account with a $50 deposit and plant to deposit $20 per week into the same account. write an expression to represent the total amount in his savings account.