7*11=77 because 7 and 11 are 4 apart Enjoy!=)
Answer:
60 minutes including the 15 minute rest.
Step-by-step explanation:
450/10 is 45. Therefore, biking for 45 minutes will loose 450 calories, 10 calories per minute. Maybe half way during the 45 minutes Spencer will take the 15 minute rest. This brings the biking trip 60 minutes.
The answer is 1.5x10⁹ That is the scientific notation
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the answer its 12.5% i swer its ok and hope helps you