Answer:
他當選，出租車上的詹姆斯敦是一個關於酒吧和平的問題，條形圖中的詹姆斯敦不知道他們在哪裡
Yes the two goods are therefore substitutes <span>if the price f a good X rises, causing the demand for good Y to fall for example two substitutes tea and coffee and the price of tea will be increase when the demand of coffee will decrease because now more people will demand tea and when demand increases price increases.
Hope it helps.
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You take 800 times 22% so .22 and you get 176 move the decimal over one place and get 17.6$
