First, before we do anything, let's find how much interest the account has earned over the four years. Multiply 0.003 by 4 to get 0.12 This means the account earned 12% of interest over the four years. Now, we need to find how much the account has earned. Multiply 1200 by 0.12 to find how much interest it currently. You get $144. Now we add 144 to 1200. We get $1344. The total amount the account has earned after four years is $1344. Hope this helped you! :)
