Question

the speed of light in a vacuum is 2.998*10^8 m/s what its speed in kilometers per hour

Answer 1

The answer is 1=1.079e+9.

Hope this helps! :D

Answer 2

2.998*10^8m/s          1hr                                        K H D B D C M

__________         ______=4996666.67 m/hr =   4996.67km/hr

       1                       60sec.