A notebook computer has a mass of 2.25 kilograms. About how many pounds does the notebook weigh?

##2.25 ” kg” ## is almost ##5 ” pounds“##
You need to know the conversion factor first.
##1″ Kg” = 2.205 ” lbs”##
So, for every Kg , there are just over 2 pounds.
##2.25 ” kg” xx 2.205 = 4.96 ” pounds”##
##2.25 ” kg” ## is almost ##5 ” pounds”##