Your answer is $660.
First let's calculate how much would be made in 1 day, and then multiply it by 8.
Making $11 an hour means that for 7 hours you would make 7 × 11 = $77. For the extra 30 minutes you would make $5.50, which means in one day you would make 77 + 5.50 = $82.50.
Now if we multiply this by 8, we get 82.50 × 8 = $660.
I hope this helps!