Answer:
$240.
Step-by-step explanation:
We have been given that Peter is working for an hourly wage of $12. He worked for 20 hours last week.
Since gross pay is the income before any tax deductions. To find Peter's gross pay, we need to multiply his hourly wages by number of hours we worked.
[tex]\text{Peter's gross pay}=\frac{\$12}{\text{ hour}}\times 20\text{ hours}}[/tex]
[tex]\text{Peter's gross pay}=\$12\times 20[/tex]
[tex]\text{Peter's gross pay}=\$240[/tex]
Therefore, Peter's gross salary last week was $240.