Answer :
The proper exponential function for describing the decrease in rainforest size by 50% per year from a starting point of 210,000 square miles is F = 210,000(0.5).
The correct exponential function that fits the situation of rainforest size decreasing at a rate of 50% per year, starting with 210,000 square miles, is F = 210,000(0.5) .
To determine the amount of rainforest in square miles there will be in t years, we apply this exponential decay model. In our formula, 0.5 represents a 50% reduction each year. Therefore, after t years, the size of the rainforest will be F = 210,000(0.5) square miles.
