Find difference. Feel free to use a number line to help you choose the best answer. Write your answer as a decimal.
-1.7-(-0.8)

-0.9

Step-by-step explanation:

-1.7 - (-0.8)

= -1.7 + 0.8

= -0.9

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m

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step-by-step explanation:

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