Jake wants to purchase a new computer and go to the Caribbean for spring break. The computer is priced at $1,299, and the vacation is priced at $750. He has only $1,537 in his checking account, so he cannot afford to purchase both. After much thought, Jake buys the computer and writes a check for $1,299. What role money plays in each of the following parts of the story.

a. Role of Money Medium of Exchange Unit of Account Store of Value
b. Jake can easily determine that the price of the computer is more than the price of the vacation.
c. Jake has $1,537 in his checking account.
d. Jake writes a check for $1,299.