Its D.4xy+4x2+4xz im sorry if it gets you wrong but i just did this question and this was the answer.
Answer: Traffic counter
Explanation: The traffic counter device is usually employed in taking accurate count or record of cars plying a particular road. They are usually electronic in nature which takes readings of vehicles, usually in the scenario above, which involves a just taking temporary count in other to make decision on whether to install a traffic light system or not, a pneumatic tube is usually employed, which are large black cables laid along the highway, the usually pressure filled such that when a vehicle passes across, it takes a count.
Answer:The Mohican, a branch of the Mahican Tribe, once occupied lands in the Hudson Valley from Poughkeepsie to Albany, including the Catskill Mountains, in what is now New York State. Living near the Hudson River and its banks, the Mohican relied heavily on the resources provided by the river, including food, building materials, and transportation via canoes
Explanation: