Explanation
Correct answer: D.
Choice D is correct. It’s given that this week, Terry has collected items. It follows that the expression represents the total number of items Terry will have collected after collecting additional items. It’s also given that Terry’s goal is to collect at least items per week. Therefore, the inequality represents this situation.
Desmos solution:
Note: Add the 4 collected items to the additional items, and “at least 16” means the total must be 16 or more.
Enter in Desmos:
Reviewed and rewritten by CookSAT
Why the other choices are wrong
Choice A
Choice A is incorrect and may result from conceptual or calculation errors.
Choice B
Choice B is incorrect. This inequality represents a situation where the goal is to collect at most, not at least, items per week.
Choice C
Choice C is incorrect and may result from conceptual or calculation errors.