Write the expression with only positive exponents and evaluate if possible. Assume all variables represent nonzero real numbers.(-2x)0
A. 1
B. 0
C. 2
D. -1
Answer: A
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Subtract and check.
A. 495,235 B. 485,245 C. 485,235 D. 484,245
Perform the operation and simplify, or solve the equation for the variable.
- 
A. 
B. 
C. 
D. 
Solve the problem.Michael decides to walk to the mall to do some errands. He leaves home, walks 5 blocks in 13 minutes at a constant speed, and realizes that he forgot his wallet at home. So Michael runs back in 11 minutes. At home, it takes him 2 minutes to find his wallet and close the door. Michael walks 4 blocks in 11 minutes and then decides to jog to the mall. It takes him 7 minutes to get to the mall which is 3 blocks away. Draw a graph of Michael's distance from home (in blocks) as a function of time. 
What will be an ideal response?
Multiply and simplify.
? 
A. 
B. 
C. - 
D. - 