Answer:
2.579365079 weeks or about 2.58 weeks or about 2.6 weeks
Explanation:
$8 · 35 hours = $280 per week
$280-$28= 252
$650÷$252= 2.579365079 weeks
If you want to, you can round. Since 2.5 · 252 = 630, just round it to 2.58 because 2.58 · 252= 650.16, or you could just round it to 2.6 if you want to just round it to the nearest tenths.