The cost of having a luncheon catered at an exclusive restaurant is based on a fixed fee to rent the party room, plus the cost of each meal. the cost for a party of 20 people is $170. the cost for a party of 60 people is $310. determine the cost per meal served. b) determine the fixed fee to rent the party room. write an equation for the total cost in y=mx+b form
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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

the answer is b