ANSWER:
D) 1000 - 100w
500; w 
5
WHY NOT A?
Well, choice a says that you can have less than or equal to $500 (
), but she wants $500 or more. Additionally, she can only do it for 5 weeks, but the equation says 6 weeks (w
).
WHY NOT B?
This choice says that she will be adding $100 a week (+100w), when the problem states, "She withdraws $100 a week".
WHY NOT C?
This choice says that she will be adding $100 a week (+100w), when the problem states, "She withdraws $100 a week". Also, this question says that she will do it for 6 weeks when she can only do it for 5 weeks or less.
D) 1000 - 100w
WHY NOT A?
Well, choice a says that you can have less than or equal to $500 (
WHY NOT B?
This choice says that she will be adding $100 a week (+100w), when the problem states, "She withdraws $100 a week".
WHY NOT C?
This choice says that she will be adding $100 a week (+100w), when the problem states, "She withdraws $100 a week". Also, this question says that she will do it for 6 weeks when she can only do it for 5 weeks or less.