Answer:
The total cost depends on the weight of the package
Step-by-step explanation:
When looking at a graph, know that the x-axis is the independent variable. It can change, but is independent of other factors.
The y-axis is the dependent variable, which changes based on the independent variable.
180 because 30/180 can be simplified to 1/6 by dividing both numerator and denominator by 30
5 because 5/30 can be simplified to 1/6 by dividing both numerator and denominator by 5
The point-slope form:

We have the points (-5, -2) and (1, 2). Substitute:

Answer: X = -9
Step-by-step explanation:
You can set up a ratio to solve this.
208/13 = -144/x
208x=-1872
x = -9
X = 15
X + 90 = 7x
X = 7x - 90
X - 7x = -90
-6x = 90
Divide both sides by -6
X = 15