Final answer:
Ms. Wright originally had $300. She spent half on gifts and earned $100, after which she had $250 left. By setting up an equation and solving for the original amount, we can confirm she started with $300.
Step-by-step explanation:
To determine how much money Ms. Wright originally had before spending half on gifts, we can use the information that after spending half and earning an additional $100, she has $250. We can set up an equation to represent this situation: Let X be the original amount. After spending half, she has ½X. She then earns $100, which when added to her remaining money totals to $250. Therefore, the equation is ½X + $100 = $250. Solving for X, we subtract $100 from both sides to get ½X = $150. Multiplying both sides by 2 gives us X = $300.
So, Ms. Wright originally had $300 before spending half on gifts.