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Problem
Mr. Mole left his burrow and started digging his way down at a constant rate.
The table compares Mr. Mole's altitude relative to the ground (in meters) and the time since he left (in minutes).
Time (minutes) Altitude (meters)
5
55
−
18
−18minus, 18
8
88
−
25.2
−25.2minus, 25, point, 2
11
1111
−
32.4
−32.4minus, 32, point, 4
What was Mr. Mole's speed?

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