What is true about the solution to the following linear equation? -12 + 3b – 1 = -5 - b
A.
one solution: x = 2
B.
no solution
C.
one solution: x = -2
D. O infinite solutions

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