To calculate the total amount in Heather's account after 6 years with a simple interest rate of 4%, you can use the formula:
Total amount = Principal + (Principal x Rate x Time)
1. Principal amount invested by Heather: $15,500
2. Rate of interest: 4%
3. Time period: 6 years
Now, plug the values into the formula:
Total amount = $15,500 + ($15,500 x 0.04 x 6)
Total amount = $15,500 + ($15,500 x 0.24)
Total amount = $15,500 + $3,720
Total amount = $19,220
Therefore, after 6 years, Heather will have a total of $19,220 in her account if she invested $15,500 at a 4% simple interest rate.
