Problem $13$:

Company ABC issues $1,000$ shares of common stock at $$50$ per share. Calculate the total amount of proceeds received from the issuance.

Problem $14$:

A company has net sales of $$500,000,$ cost of goods sold of $$200,000,$ and operating expenses of $$100,000.$ Calculate the company's gross profit margin.

Problem $15$:

Calculate the net present value $($NPV$)$ of an investment with initial cost of $$50,000$ and cash flows of $$20,00$

$0$ per year for $5$ years, assuming a discount rate of $10\%.$

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