Respuesta :

Draw out a number line. Plot the values -86, 0 and +45. To go from -86 to 0, you need to travel 86 meters. Then to go from 0 to 45, you need to travel another 45 meters.

In total, you have gone 86+45 = 131 meters (in the up direction)
dw442017
-86+45= -41 
If u read the Question it says -86 meters and he hike up 45 more meters
so your going to have to add them and you will get -41

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good job