Answer
See below:
Work Step by Step
(a)
In order to calculate gross pay multiply pay per hour and working hours for week:
Weekly gross pay=Job pay *Weekly working hours} =$8.50 *20 hr =170
(b)
In order to calculate weekly federal taxes, multiply the percentage of withheld federal tax with gross pay.
\[\begin{align}
& \text{Weekly}\,\text{federal}\,\text{taxes}=\text{Percent}\,\text{of}\,\text{federal}\,\text{taxes}\,\text{withheld}\times \text{Gross}\,\text{pay} \\
& =10percent\times \$170\\&=0.10\times\$170\\&=\$17\end{align}\]
(c)
In order to calculate weekly FICA taxes, multiply percent of FICA taxes withheld with gross pay.
\[\begin{align}
& \text{Weekly}\,\text{FICA}\,\text{taxes}=\text{Percent}\,\text{of}\,\text{FICA}\,\text{taxes}\,\text{withheld}\times \text{Gross}\,\text{pay} \\
& =5.65percent\times \$170\\&=0.0565\times\$170\\&=\$9.61\end{align}\]
(d)
In order to calculate weekly state taxes, multiply percent of state taxes withheld with gross pay.
\[\begin{align}
& \text{Weekly}\,\text{state}\,\text{taxes}=\text{Percent}\,\text{state}\,\text{taxes}\,\text{withheld}\times \text{Gross}\,\text{pay} \\
& =3percent\times \$170\\&=0.03\times\$170\\&=\$5.1\end{align}\]
(e)
In order to calculate weekly net pay, deduct the sum of all taxes from gross pay.
\[\begin{align}
& \text{Weekly}\,\text{net}\,\text{pay}=\text{Gross}\,\text{pay}-\left( \text{Federal}\,\text{taxes}+\text{FICA}\,\text{taxes}+\text{State}\,\text{taxes} \right) \\
& =\$170-(\$17+\$9.61+\$5.1)\\&=\$170-\$31.71\\&=\$138.29\end{align}\]
(f)
In order to calculate the percent of gross pay withheld as taxes, divide the sum of all taxes with gross pay and multiply the answer with 100 to convert into a percent.
Step 1: Calculate the sum of all taxes:
\[\begin{align}
& \text{Sum}\,\text{of}\,\text{taxes}=\text{Federal}\,\text{taxes}+\text{FICA}\,\text{taxes}+\text{State}\,\text{taxes} \\
& =\$17+\$9.61+\$5.1\\&=\$31.71\end{align}\]
Step 2: Divide sum of taxes with gross pay:
\[\frac{\$31.71}{\$170}=0.1865\]
Step 3: Multiply with 100 and round off to nearest tenth:
\[0.1865\times 100=18.65\approx 18.7\]
Step 4: Attach the percent sign:
\[18.7percent\]
