Raub Mining Corporation bonds carrying a coupon rate of 8.5% p.a., is selling for $844.40. Coupon interest payments are being paid semiannually and the bonds will mature 15 years from today. If the current market rate is 10%, would you invest in the bond? Explain. (Use 3-decimal places in your calculation) Where applicable, draw the timeline showing the known and unknown variables, and show your workings.