Find the effective rate of the compound interest rate or investment. () A $60,000 zero-coupon bond maturing in 9 years and selling now for $43, 035. You have just received $145,000 from the estate of a long-lost rich uncle. If you invest all your inheritance in a tax-free bond fund earning 6.5% compounded quarterly, how long do you have to wait to become a millionaire? () You have just received $145,000 from the estate of a long-lost rich uncle. If you invest all your inheritance in a tax-free bond fund earning 6.5% compounded quarterly, how long do you have to wait to become a millionaire? ()