[truyện danh nhân thế giới] [làm thÃÂÃâ€] [倍率を大きくしたい] [anna coulling] [simbolos de pregunta] [슈í�¼ë] [thiềnvànghệthuậtbảodưỡngxemáy] ["bà quyết Ä‘á»c sách"] [Suppose you invest $6,400 in an account that pays 4.5% interest per year, compounded continuously.(a)What is the amount (in $) after 3 years? (Round your answer to the nearest cent.)$ (b)How long (in yr)%] [ãƒ‡ã‚¸ã‚«ãƒ¡ç”»åƒ ã€€PCã€€ä½ ç½®ãƒ‡ãƒ¼ã‚¿ç‰ã ®æ¶ˆåŽ»]