I think it's none because that should be communitive and that's not there so.
I beleive 144=2 is the answer.
If you have to divide that to get 1 number it would be 72.
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Answer:
1478 mi/h
Step-by-step explanation:
The rate of change is the distance divided by the time.

Answer:
10-x ft long
Step-by-step explanation:
If it starts out 10ft long, and xft is taken away, then the remaining board would be 10-x ft long.
In terms of x, I believe it would just be 10-x ft long