An ecologist presents her findings at a town hall meeting. She estimates that there are thirteen hawk nesting sites on the town's nature preserve. She estimates the number of nesting sites will decrease by four nesting sites each year.
Define a unit for the amount of time.
Based upon her prediction, how many nesting sites will be on the preserve next year?
How many nesting sites will be on the preserve in three years based upon her prediction?
Enter a variable for the amount of time and use this variable to write an expression for the number of nesting sites remaining.