Mates recorded that water levels in one part of river fell 1.05 millimeters per year for 2.48 years. Describe how you could estimate the total variation in water level

2.60 mm drop or -2.60 mm from zero

Step-by-step explanation:

Level in the river continues dropping at an average rate of 1.05 mm/year

So total variation is the total drop over the period of 2.48 years and is:

So total variation is 2.60 mm drop or -2.60 mm from zero level

b

step-by-step explanation:

explanation:

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