Final answer:
The question pertains to Mathematics, specifically related to budgeting and expenditure, which falls within the Middle School grade level. Anique needs to calculate her total spending to ensure it doesn't exceed her $50 budget.
Step-by-step explanation:
The subject of the question appears to be Mathematics based on the scenario involving budgeting and expenditure. Anique has a budget of $50 on her debit card and she has made several purchases: a dress for $30, shoes for $30, a necklace/bracelet set for $20, and her lunch for $20. To solve Anique's problem, we need to calculate the total amount spent and determine if she has stayed within her budget. This involves basic arithmetic of adding the costs of the items purchased and subtracting this from her initial budget.
The setup is a real-world application of basic math that typically falls within the curriculum of Middle School mathematics, as it involves understanding spending within a budget, a practical skill that is often introduced at this level.