Why are primary and secondary markets governed by regulating bodies?
Millions of investors trade in primary and secondary markets. To protect their interests and to help maintain market blank
these markets are regulated by government bodies.

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step-by-step explanation:

change of stock price/initial stock price on friday * total stock value = change of stock value

0.89/73.73 *x = 42.72

x=3539.04 = total stock value at initial stock price on friday .

total stock value at initial stock price on friday/ initial stock price on friday = number of shares

3539.04/73.73 = 48 shares

they own 48 shares of this stock

the answer for this is 0.25 km. : )