D. people do not have to have a good or service that another person wants
Reason: Money gives people a universal unit of value. For example, If I needed a toothbrush and I have a pair of scissors, In order for me to get a tooth brush is to trade my scissors with someone else who has a tooth brush and wants scissors. As you can see, this isn't practical. If I had money, I will only need to find someone who has a tooth brush.
Answer:

Step-by-step explanation:

Answer:
66 inches
Step-by-step explanation:
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Answer:
3z
2
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
Put √49 in a calculator and it will give you 7.