Attempts Keep the Highest / 1 1. The roles of money Rajiv is heading out to lunch. He goes to the bank and withdraws $30 from his savings account. He heads to a local tacqueria that sells individual tacos for $4.99 and two tacos for $7.99. Rajiv decides that he's hungry enough to eat two tacos, and selects that meal. He pays with a $10 bill and tells the cashier to keep the change. Identify what role money plays in each of the following parts of the story. Hint: Select each role only once. Medium of Unit of Store of Role of Money Exchange Account Value Rajiv can easily determine that the two tacos, while twice as much food as the one taco, is priced at less than twice as much. OOO O OO Rajiv accumulates money in his savings account for future purchases. Rajiv buys his lunch with a $10 bill