Question

Which one is an expression of distance in SI units?
a. 24 feet
b. 500 meters
c. 30 miles
d.16 kilograms

Answer 1

The SI unit for distance is the meter so D is your answer. :D

Answer 2

expression of distance in SI units will be sure the choice b. so 500 meters 
just bc. the distance is measured in meters 

hope helped