a. If in one day a wildfire spreads at a rate of 1000 acres, in two days the wildfire will cover approximately 2000 acres.
b. Similar to Part a., if a wildfire spreads at a rate of 1000 acres a day, it will cover approximately 5000 acres in five days.
c. You can estimate the number of square miles covered by the fire per day by dividing 780 square miles by 7 days.