Answer:
See below.
Explanation:
Looking at a car's price to see if we can afford is using the money function of unit of account. Unit of account is when we are able to determine the worth of the asset or transaction and see if we have enough value to exchange.
When we pay for groceries we are using money as a medium of exchange as we are exchanging groceries with another commodity that is cash.
When we save part of our wealth we are using money as a store of value. This signifies that the money value remains consistent over time and that money still holds economic value over time as opposed to other commodities that may perish.
When we compare prices we are using money as a measure of value. We are able to measure different product's worth in a uniform measure that being the money.
Hope that helps.