7. Consider the tape diagrams below, then answer the question that follows: 5,250 5,250 - 1,750 = 3,500 Which of the following problems could best be represented by the model above? You placed $4,200 in an investment account. After five years, the total amount in the account appreciated by 25%. At this point, you decided to withdraw one third of the money in the account to move to a new investment. How much money was left in the account? b. You placed $5,250 in an investment account. After five years, the total amount in the account depreciated by 20%. It then depreciated by one-third. How much money was left in the account? A furniture dealer buys a sofa from his distributor for $4,200. However, he marks this price up by 20% when he sells it to you. You eventually sell the sofa for a third of what you paid for it. How much did you sell the sofa for? d. A furniture dealer sold you a sofa for 20% off of $5,250. If you eventually sell the sofa for one-third less than what you paid for it, for how much money did you sell the sofa? a