There are 3 red chips and 2 blue chips. When arranged in a row, they form a certain color pattern, for example RBRRB. How many color patterns are possible?
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Fish currently costs about the same at seafood stores throughout Eastville and its surrounding suburbs. Seafood stores buy fish from the same wholesalers and at the same prices, and other business expenses have also been about the same. But new tax breaks will substantially lower the cost of doing business within the city. Therefore, in the future, profit margins will be higher at seafood stores within the city than at suburban seafood stores.
For the purposes of evaluating the argument, it would be most useful to know whether
(A) More fish wholesalers are located within the city than in the surrounding suburbs
(B) Any people who currently own seafood stores in the suburbs surrounding Eastville will relocate their businesses nearer to the city
(C) The wholesale price of fish is likely to fall in the future
(D) Fish has always cost about the same at seafood stores throughout Eastville and its surrounding suburbs
(E) Seafood stores within the city will in the future set prices that are lower than those at suburban seafood stores
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