The simple interest earned by Lisa is $2808
Solution:
Given that Lisa invested $5200 in a savings account with a yearly interest rate of 6% for 9 years.
The simple interest is given as:
[tex]\text { Simple interest }=\frac{\mathrm{p} \times \mathrm{r} \times \mathrm{t}}{100}[/tex]
Where "p" is the principal amount
"r" is the rate of interest
"t" is the time period
Here p = 5200; r = 6% ; t = 9 years
[tex]\begin{array}{l}{\text { Simple interest }=\frac{5200 \times 6 \times 9}{100}} \\\\ {=\frac{280800}{100}=2808}\end{array}[/tex]
So, the simple interest Lisa earn is $2808
