Verified Answer :

altavistard

Answer:

Amanda

Step-by-step explanation:

Find the unit rate in each case and then compare the two rates:

 4.5 km

-------------- = 1/2 km/min  (Sam)

 9 min

 3.6 km

-------------- = 0.6 km/min (Amanda)

 6 min

Amanda, riding at 0.6 km/min, can go further in 1 minute than Sam, who rides at 0.5 km/min.

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