3 hours
On the way there, 1.5x12 = 18
On the way back, 1.5x10 = 15
-1/2 because slope is the rise over the run. If you count on the grid from one point on the line to another you go up one and 2 to the left meaning the slope is 1/2, buttttt when the line decreases going to the right, it has a negative slope so you just add a - sign in front
T to the 4th power then multiply by 3.
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is going to be your answers i believe
