The neighborhood association is buying timbers to put around the edge of the playground. the length of the playground is 51 1/8 ft. the width is 38 1/4 ft. what is the perimeter of the playground? **hint - you should convert your fraction to a decimal. select one: a. 178.75 ft b. 178.25 ft c. 89.25 ft d. 89.75 ft

a) 15/7

step-by-step explanation:

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