Find the following. Assume that letters can represent any real number.
A. 
- 9
B. 9 - x
C. x - 9
D. 
Answer: C
Mathematics
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Multiply mentally.
A. 9x2 - 
B. 9x2 + 80x - 
C. 9x2 - 80x - 
D. 9x4 - 
Mathematics
For the given function expressed verbally, give a symbolic representation.To convert x centimeters to y inches, divide x by 2.54. Let y = f(x).
A. f(x) = 2.54x B. f(x) = 2.54 - x C. f(x) = 2.54/x D. f(x) = x/2.54
Mathematics
Make the indicated conversion with American units of capacity.11 gal 3 qt = 
quarts
A. 56 qt B. 25 qt C. 91 qt D. 47 qt
Mathematics
Solve the problem.From the letters of the word FACETIOUS groups of 5 letters are formed (without regard to order). How many groups contain F but not C?
A. 126 B. 35 C. 70 D. 840
Mathematics