Answer:
D. 29
Step-by-step explanation:
180 - 151 = 29
Answer:

Step-by-step explanation:
Given
-- of the roadworks

Required
Determine the speed
In this case:


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<em> --- approximated</em>
The common difference is -6.
Because,
14 - 6 = 8
8 - 6 = 2
2 - 6 = -4
-4 - 6 =-10