Answer:
There could be a customer with the same name or surname. It could cause a mess in your database if the customer wants payback for something and there will be the customer with the same name. I think that the primary key should be consisted of unique Customer's ID number.
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Explanation:
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Based on the information depreciation expense and amortization expense represent non-cash items.
Non-cash items has to do with expense that does not involve paying cash.
Depreciation expense and amortization expense are non cash item as no cash payment is involve.
Although this expense may be included in a company profit or loss account or net income but they do not have effect on a company cash flow.
Non cash item like depreciation expenses and amortization expense often have effect on a company overall net income.
Inconclusion depreciation expense and amortization expense represent non-cash items.
Learn more about non-cash item here:
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