Final answer:
The total amount of Stacy's $10,000 investment at a 4.5% simple interest rate after 3 years will be $11,350, calculated using the formula for simple interest.
Step-by-step explanation:
Stacy is making an investment of $10,000 with a 4.5% simple interest rate. To calculate the total amount of the investment after 3 years, you use the formula for simple interest: total amount = principal + (principal × interest rate × number of years). In this case:
Total amount = $10,000 + ($10,000 × 0.045 × 3)
Total amount = $10,000 + ($10,000 × 0.135)
Total amount = $10,000 + $1,350
Total amount = $11,350
So, the total amount of the investment after 3 years would be $11,350, which means the correct answer is (c) $11,350.