A new savings account is opened with $400 and gains 3% every year. What is the
exponential function?

this linear equation would have just one solution.

step-by-step explanation:

the reason why this would have one solution is that it is an expression with just one variable. since that variable is not raised to a power, it will always have just one solution.

there were a lot of them but the first one to pop up on a google search was bts