.
Solution
Given,
The amount earned per hour = $8
That means that:
For the 50 hours, he will earn:
[tex]50\times8=400[/tex]Recall,
He earns half for every 40 hours
Therefore the extra he will earn
[tex]\frac{400}{2}=200[/tex]Therefore, the total amount earned is:
[tex]200+400=600[/tex]The amount Earned for the week is $600
The first option is the correct answer