Question 1190262
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a) Simple interest formula: I=prt<br>
p = principal (beginning amount): $8000
r = annual interest rate: 13% = 0.13
t = number of years: 9 months = 3/4 years<br>
I = (8000)*(0.13)*(3/4)<br>
Use a calculator....<br>
b) Add the amount of interest to the beginning amount.<br>