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.

x=30

step-by-step explanation:

answer are

step-by-step explanation: