Question 967591


(a) 
{{{18}}}% of {{{90}}}, 
{{{18}}}%={{{18/100=0.18}}}
{{{90*0.18=16.2}}}

(b)

{{{30}}}% of {{{600}}}, 
{{{30}}}%={{{30/100=0.30}}}
{{{600*0.30=180}}}