Use the Negative Exponent Rules to simplify. Write the answer with positive exponents. All variables are nonzero.7x-7
A. 
B. 
C. -7x
D. -49x
Answer: A
Mathematics
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Solve the system by elimination.
- 
= -18
+ 
= -9
A. {(-12, 0)} B. {(0, 12)} C. {(0, -12)} D. {(12, 0)}
Mathematics
For the function, find the average rate of change of f from 1 to x: 
f(x) = 
A. 
B. 
C. - 
D. 
Mathematics
Multiply.(-0.7)(3.16)
A. 2.46 B. 2.212 C. -2.212 D. 3.86
Mathematics
Use multiplication to check the answer. If an answer is incorrect, find the correct answer.
A. Incorrect; should be 83 R2 B. Incorrect; should be 83 C. Incorrect; should be 82 R3 D. Correct
Mathematics