Answer:
3 miles per hour
Step-by-step explanation:
It is given that Diego and his friends took part in a walk a thon to raise money for cancer research.
From the table, it is given that:
Time took by Diego in hours = 2 hours
Miles walked by Diego in miles = 6 miles
Therefore, Diego is walking with a speed of = 
= 3 miles per hour
It would cost 0.04 cents per inch (or .48 cents per foot)
It's rational because it is a repeating decimal. 20/6=3.33333333333333...
The answer is (x-1) (x+6)