Step-by-step explanation:
x2-8x+2x-16=0
x(x-8) 2(x-8)=0
x-8=0. x-8=0
x=8. x=8
Answer:
$600
For 8 hours she makes $120
For 1 hour she makes $120÷8 = $15
For 40 hours she makes $15 × 40 = $600
Our final answer is $600
Hope this helped and have a good day
