Helen pays a 10% commission on the cost of the stock she bought at $17.57 per share. she purchased 150 shares. how much will helen pay for the stocks and commission?

In a market economy, supply and demand are important because theya. (i) play a critical role in the allocation of the economy's scarce resources.b. (ii) determine how much of each good gets produced.c. (iii) can be used to predict the impact on the economy of various events and policies.d. all of (i), (ii), and (iii) are correct.