Fthe goods' money prices do not change, an appreciation of the dollar against the pound
a) makes british sweaters cheaper in terms of american jeans.
b) makes british sweaters more expensive in terms of american jeans.
c) doesn't change the relative price of sweaters and jeans.
d) makes american jeans cheaper in terms of british sweaters.
e) makes british jeans more expensive in britain.

A)

Explanation:

According to my research on exchange rates and it's affect on economics, I can say that based on the information provided within the question an appreciation of the dollar against the pound makes British sweaters cheaper in terms of American jeans. This is because when the dollar appreciates, prices of domestic products/services always increase while prices of foreign products/services fall in value.

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there's 11 people for the 1st position. then, no matter who gets it, there's only 10 left for the second, and then 9 left for the third. 11 x 10 x 9 = 990.   the answer is there are 990 different ways the positions can be filled by these applicants