So a sector of a circle has a diameter of 16 feet and an angle of 2pi/5 radians(this is a fraction by the way)Find the area of the sector and round to four decimal places.

At the beginning of year 1, carlos invests $600 at an annual compound interest rate of 4%. he makes no deposits to or withdrawals from the account. which explicit formula can be used to find the account's balance at the beginning of year 5? what is, the balance?