Final answer:
The equation that can be used to represent the graph of Pepper Jackie's savings account is d) w = 25s + 50.
Step-by-step explanation:
The equation that can be used to represent the graph of Pepper Jackie's savings account, where she starts with $25 and adds $50 each week, is d) w = 25s + 50. In this equation, w represents the number of weeks and s represents the total amount of money in the savings account.