Speed of light

Light travels at about 300,000 km/s. How fast is that in km/h ? Give your answer in scientific notation.

x 10   km/h

The Moon is about 360,000 km from the Earth. How many seconds does it take for light leaving the Moon to reach our eyes ?

The Sun is about 150 millions of kilometers from the Earth. How many minutes and seconds seconds does it take for light leaving the Sun to reach our eyes ?

min s