Afreight airline charges a flat fee to airmail a box, plus an additional charge for each pound the box weighs. the graph above shows the relationship between the wight of the box and the total cost to airmail it. based on the graph, how much would it cost in dollars to airmail a 40-pound box?

  $70

Step-by-step explanation:

The graph goes through the points (0, 10) and (8, 22), so the slope is ...

  (22 -10)/(8 -0) = 12/8 = 1.5

Then the cost of a 40-pound box will be ...

  cost = 1.5×pounds + 10

  cost = 1.5×40 +10 = 70

It will cost $70 to airmail a 40-pound box.

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pentagon

step-by-step explanation:

the coordinates   a(5, -2), b(3,-1),c(-4,-4) d(-3,8) and e(-1,4) forms the vertices of the polygon when they are connected in order.

in order to classify that which polygon is it with the given coordinates, first count the number of vertices and then count the number of sides it can make with these vertices.

since, the given coordinates have five vertices, therefore, it will make five sides. moreover, pentagon is regular in nature therefore it will be convex.

now, a polygon with five sides is known as pentagon, therefore, the given polygon is the pentagon.