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What is the radius of the circle that has a circonférence of 23pi inches?Rose opened a savings account and deposited 1,000.00. The account earns 9% interest, compounded monthly. If she wants to use the money to buy a new bicycle in 2 years, how much will she be able to spend on the bike?Charlos purchased a machine for 85, 000 after a discount of 25%. Calculate the original price of the machineBill invested 4200 in an account that pays an annual interest rate of 3.1%, compounded monthly. Find the amount in the account after one year, assuming no withdrawals are made.Do not round any intermediate computations, and round your answer to the nearest cent.A person places 398 in an investment account earning an annual rate of 9.7%, compounded continuously. where V is the value of the account in t years, P is the principal initially invested, e is the base of a natural logarithm, and r is the rate of interest, determine the amount of money, to the nearest cent, in the account after 7 years.