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The sum of two numbers is 40. One number is 4 times as large as the other. What are the numbers?A principal of 3700 dollars is invested at 8.25% interest, compounded annual. How much will the investment be worth after 15 years?Devaughn's age is three times Sydney's age. The sum of their ages is 36. What is Sydney's age?15 increased by a number equals 27Brooke earned 10,000.00 from a summer job and put it in a savings account that earns 15% interest compounded quarterly. When Brooke started college, she had 34,669.00 in the account which she used to pay for tuition. How long was the money in the account?