A coin sold at auction in 2019 for $6,788,000. The coin had a face valui was issued in 1790 and had been previously sold for $280,000 in 1967. a. At what annual rate did the coin appreciate from its first minting to (Do not round intermediate calculations and enter your answe rounded to 2 decimal places, e.g., 32.16.) b. What annual rate did the 1967 buyer earn on his purchase? (Do not r intermediate calculations and enter your answer as a percent roun. uction in 2019 for $6,788,000. The coin had a face value of $5 when it 90 and had been previously sold for $280,000 in 1967. hual rate did the coin appreciate from its first minting to the 1967 sale? und intermediate calculations and enter your answer as a percent 2 decimal places, e.g., 32.16.) al rate did the 1967 buyer earn on his purchase? (Do not round te calculations and enter your answer as a percent rounded to 2 c. At what annual rate did the coin appreciate from its first minting to th (Do not round intermediate calculations and enter your answer as rounded to 2 decimal places, e.g., 32.16.) inual rate did the coin appreciate from its first minting to the 2019 sale? und intermediate calculations and enter your answer as a percent o 2 decimal places, e.g., 32.16.) rounded to 2 decimal places, e.g., 32.16.)