2. The Adams family went out for dinner at Texas Roadhouse. The total including a $12 tip was $68.42. The tip is what percentage of the total cost of the meal?
aces

i think asking google will you get the answer to that question

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