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?
A) 12x + 9.5y ≤ 220 x + y ≥ 20 B) 12x + 9.5y ≤ 220 x + y ≤ 20 C) 12x + 9.5y ≥ 220 x + y ≤ 20 D) 12x + 9.5y ≥ 220 x + y ≥ 20
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