Nicole opens a savings account with an initial deposit of $5,000. since then, she has never made any other deposits or withdrawals. her savings account earns 4℅ intrest compounded monthly. which equation gives the approximate amount, a(x), she has in her savings account as a function of x, the number of years since her initial deposit?

1. a(x)= 5,000^(0.96x)

2. a(x)= 5,000(0.959)^x

3. a(x)= 5,000 + 0.04x

4. a(x)= 5,000^(1.04x)

5. a(x)= 5,000(1.041)^x