Jackie has two summer jobs. She works as a tutor, which pays
$
12
per hour, and she works as a lifeguard, which pays
$
9.50
per hour. She can work no more than 20 hours per week, but she wants to earn at least
$
220
per week. Which of the following systems of inequalities represents this situation in terms of x and y, where x is the number of hours she tutors and y is the number of hours she works as a lifeguard?
