Final answer:
Using the simple interest formula, I=PRT, with a principal of $10,000, a rate of 7.5%, and a time of 4 years, Milton will have a total of $13,000 in his account after 4 years.
Step-by-step explanation:
To calculate the total amount of money Milton will have in his savings account after 4 years with a simple interest rate of 7.5%, we can use the simple interest formula:
I = PRT
Where I is the interest, P is the principal amount, R is the rate of interest per year, and T is the time in years.
Given that Milton invested $10,000 at a simple interest rate of 7.5% for 4 years, we can plug these values into our formula:
I = $10,000 * 0.075 * 4
I = $3,000
Now we add the interest to the principal to find the total amount in the account after 4 years:
Total Amount = Principal + Interest
Total Amount = $10,000 + $3,000
Total Amount = $13,000