Nathan opens a new savings account and makes an initial deposit of $400.

if the account earns 2% annual interest, how much interest will he earn in 9 months?

$6

Step-by-step explanation:

To find how much Nathan will get in 9 months, we use the formula:

Let's break down the variables that we have.

I = ?

P = 400

r = 2% or 0.02

t = 9/12 or 0.75

The time is 0.75, because the interest is applied annually.

Now let's plug in our values to the formula.

Nathan will earn $6 in interest in 9 months.

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if x = 1, then the answer is 3.5