Answer:
A rational number is normally number that can be expressed in the form of p/q where q ≠ 0. But, 
cannot be expressed in the form of p/q. So. this means that
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Answer:
140 minutes
Step-by-step explanation:
After 28 mins you've gone 4 miles, assuming this rate is constant and you dont slow down or speed up, in order to get to 20 miles you will have run 5x as much (20/4 = 5), thus 5x the amount of time (28x5).
20/4 = 5
5x28 = 140
