The equation is provided below:
$10 = Chauncy's rate per hour of work
2 hrs = working hours of Chauncy per day
5 days = working days of Chauncy per week
$10 * 2 hrs= $20 (salary per day of Chauncy)
$20 * 5 days = $100 (salary per week)
The correct answer is Chauncy's salary per week is $100.