Evaluate the expression for the given replacement values.x - y
for x = -12, y = -9
A. -3
B. 21
C. -21
D. 3
Answer: A
Mathematics
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Remove parentheses and simplify.8x - (8 - 4x)
A. 8x - 12 B. 12x + 8 C. 12x - 8 D. 4x - 8
Mathematics
Perform the indicated operation.
A. -5 B. 5 C. -1 D. 9
Mathematics
Write the expression as the sum or difference of single logarithms.log12 x3 
A. log12 3 + log12 x + log12 
+ log12 y
B. log12 3 + log12 x - log12 
- log12 y
C. 3 log12 x + 
log12 y
D. 3 log12 x - 
log12 y
Mathematics
Evaluate the sum.
4k
A. -16 B. 112 C. 16 D. -112
Mathematics