Jon Inc. issued callable bonds on January 1, 2021. Jon's accountant has calculated the following amortization schedule from issuance until maturity: Date Cash interest Effective interest Decrease in balance Outstanding balance 1/1/2021 $ 207,020 6/30/2021 $ 7,000 $ 6,211 $ 789 206,230 12/31/2021 7,000 6,187 813 205,417 6/30/2022 7,000 6,163 837 204,580 12/31/2022 7,000 6,137 863 203,717 6/30/2023 7,000 6,112 888 202,829 12/31/2023 7,000 6,085 915 201,913 6/30/2024 7,000 6,057 943 200,971 12/31/2024 7,000 6,029 971 200,000 What is the annual effective interest rate on the bonds?

Owns a machine that can produce two specialized products. production time for product tlx is two units per hour and for product mtv is four units per hour. the machine’s capacity is 2,100 hours per year. both products are sold to a single customer who has agreed to buy all of the company’s output up to a maximum of 3,570 units of product tlx and 1,610 units of product mtv. selling prices and variable costs per unit to produce the products follow. product tlx product mtv selling price per unit $ 11.50 $ 6.90 variable costs per unit 3.45 4.14 determine the company's most profitable sales mix and the contribution margin that results from that sales mix.