Using the 1949 oil price and the 1969 oil price, compute the annual growth rate in oil prices during those 20 years. Compute the annual growth rate between 1969 and 1989 and between 1989 and 2020. Given the price of oil in 2020 and your computed growth rate between 1989 and 2020, compute the future price of oil in 2023 and 2028.