Can someone help me with these physics problems?

[Kurdish Violet]

1) Convert 1.1 cm to meters:

2) Convert 9270ms to seconds:

3) How many significant figures are in 0.000534kg

4) multiply: ( 5x10^8m)(4.2x10^7m)

Thank You!

 

[faisay]

.011m
92.70s
2
and use calculator