Fishing of a severely depleted population of fish was banned in the early 1990's. On 1 January 1995 it was estimated that the mass of the fish population was 5000 tonnes and increasing at a rate of 8.5% per year.
On 1 January a few years later, it was estimated that the mass of the fish population was 10000 tonnes and increasing at a rate of 7.3% per year.
Write down the annual proportionate growth rates for population masses of 5000 and 10000 tonnes.
Can you help?