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?

1. alwaysrain irrigation, inc. would like to determine capacity requirements for the next four years. currently, two production lines are in place for making bronze and plastic sprinklers. three types of sprinklers are available in both bronze and plastic: 90-degree nozzle sprinklers, 180-degree nozzle sprinklers, and 360-degree nozzle sprinklers. management has forecast demand for the next four years as follows: both production lines can produce all the different types of nozzles. the bronze machines needed for the bronze sprinklers require two operators and can produce up to 12,000 sprinklers. the plastic injection molding machine needed for the plastic sprinklers requires four operators and can produce up to 200,000 sprinklers. three bronze machines and only one injection molding machine are available. what are the capacity requirements for the next four years? (assume that there is no learning.)