Joanne works two jobs to pay for college. she tutors for $25 per hour and also works as a receptionist for $12 per hour. due to her class and study schedule, joanne is only able to work up to 25 hours per week, but must earn at least $200 per week. if t represents the number of hours joanne tutors and r represents the number of hours she works as a receptionist, which system of inequalities represents this scenario?

a. t + r > = 25
25t + 12r = 200

b. t + r < = 25
25t + 12r < = 200

c. t + r < = 25
25t + 12r > = 200

d. none of the systems shown represent this scenario.