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    				| 1. | For all real numbers b and c such that the product ofc and 3 is b, which of the following expressions represents the sum of c and 3 in terms of b?A. b+3B. 3b + 3C. 3(b +3)b +3E. 2 +3 | 
| Answer» First let us set up the equation we are told—that the product of c and 3 is b. 3c=b Now we must isolate c so that we can add its value to 3. 3c=b c=b3 Finally, let us add this value to 3. b3+3 Our final answer is E, b3+3 [Note: Because this problem uses variables in both the problem and in the answer choices—a key feature of a PIN question—you can always use the strategy of plugging in numbers to solve the question.] | |