1. A swimming pool is 75 feet long and 42 feet wide. If 7.48 gallons equals 1 cubic foot, how many gallons of water are needed to raise the level of the water 4 inches?
2. Define sinusoidal function in your own words.
3. Compare and contrast real-world data that can be modeled with a polynomial function and real-world data that can be modeled with a sinusoidal function.