Erin deposited $1,800 in a new account that earns 2% simple interest. After 3 years, how much interest will she have earned?

1800 * 0.02 * 3

To find out how much interest Erin will have earned after 3 years, we can use the formula for simple interest:

Interest = Principal * Rate * Time

Where:
Principal = $1,800 (the amount deposited)
Rate = 2% (expressed as a decimal, so 0.02)
Time = 3 years

Substituting the given values into the formula:

Interest = 1800 * 0.02 * 3

Calculating this:

Interest = $108

Therefore, Erin will have earned $108 in interest after 3 years.

To calculate the amount of interest Erin will have earned, we can use the formula for simple interest:

Interest = Principal × Rate × Time

In this case, the principal (or initial deposit) is $1,800, the rate is 2% (which can be expressed as 0.02 in decimal form), and the time is 3 years. Plugging these values into the formula:

Interest = $1,800 × 0.02 × 3
Interest = $108

Therefore, Erin will have earned $108 in interest after 3 years.