Not sure if this is an answer choice but it would be Signal
Let me know if this is the correct answer and if you have any other questions that need to be answered.
I think it is D because transportation helped people go to far away places, and manufacturing produces goods.
Thanksgiving - Wampanoag: Thanksgiving is a popular holiday in the United States. But before the Europeans came, the Wampanoags were doing Thanksgiving beforehand, and ate dishes that we still eat on Thanksgiving today; cornbeard, turkey, dressing, cranberry sauce, etc.
Hockey - Sauk, Foxes and Assiniboine: Hovkey was originally called "Shinny", and was played with a ball made of buckskin and a curved stick. Unlike in the modern world, you can play either floor hockey or ice hockey, these Native American groups only played it in the winter.
Gumbo - Native American Choctaws: This is a very popular dish in the Southern states of America and escpecially in Lousiana. It was originally made from Native Americans, who shared the recipe with slaves and poor white farmers.
Hope this helps, have a blessed and wonderful day! :-)
- Cutiepatutie
<h2>Answer:</h2><h2 />
There are two ways to solve a system of linear equations (equations representing a line) of two or more equations and find if there is a solution (or solutions) that satisfies all the equations in the system at the same time or <u>if there is not solution</u>.
1. Graphically, plotting the graphs of the lines and determining if they intersect and in which point.
2. Algebraically, combining the equations to delete each unknown except one, and then clear it.
In this context, a system of linear equations <u>has no solution</u> when the two lines are <u>parallel</u> and distinct, that is, they do not intersect or there is no intersection point.
Now, when two lines are parallel they have the same slope. We will be able to recognize it if we write the equation in the slope-intersect form:
Where 
is the slope and 
the intersection point.
