Given:
The amount for fixed expenses = $1,128.
Semimonthly income = $3,153
We know that a semimonthly payroll is paid twice a month.
[tex]\text{Monthly income =2}\times$3,153$=6306[/tex]The percent of the monthly income is fixed expenses.
Let x be the required percentage.
[tex]x\text{ \% 6306=1128}[/tex][tex]x=\frac{1128}{6306}\times100[/tex][tex]x=17.88[/tex]Round off.
[tex]x=18\text{ \%}[/tex]Hence the required percentage is 18.