Answer:
Yes
Step-by-step explanation:
10,20,30,40,50 are all divisible by 5.
Answer:
62/10
Step-by-step explanation:
All the other options are positive integers, which are natural numbers.
Answer:
2.5 hours
Step-by-step explanation:
The product of speed and time is distance. If the distance is the same, then time is inversely proportional to speed. At 60/50 = 6/5 times the speed, the return trip will take 5/6 times the time:
(5/6)(3 hours) = 2.5 hours . . . time for return trip
Answer:

Step-by-step explanation:
6 = −3[2] + b
−6

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