The inequality that describes this situation is: 135 + 89 + c ≥ 325 To find out how many cans are needed to meet or surpass the goal, we need to solve the inequality for c. c ≥ 325 - 135 - 89 c ≥ 101 Therefore, at least 101 cans of food must be collected by the end of the third week for your class to meet or surpass its goal.

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To meet or surpass the goal of collecting 325 cans of food, at least 101 cans must be collected by the end of the third week.