During low tide in Wrightsville, North Carolina, the beachfront in some places is about 350 feet from the ocean to the homes. High tide can chance the width of a beach at a rate or -17 feet an hour. It takes 6 hours for the ocean to move from low to high tide.
a. What is the change in the width of the beachfront from low to high tide?
b. What is the distance from the ocean to the homes at high tide?
