Write the decimal number in binary form.45
A. 101001
B. 101111
C. 101110
D. 101101
E. 100111
Answer: D
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Simplify. Write the answer using positive exponents only. Leave the answer in exponential notation.
A. 
B. 
C. 9x6y7
D. 9x11y18
Answer the question or solve the problem.Susan, Tim, Peter, Nora and Norma have 20 pieces of candy to share. Susan only wants two pieces. Peter will take as many as he can. Tim and Nora will end up with the same number of pieces. Norma will not get the most pieces, but Susan will get the fewest pieces. Norma will get twice as many pieces as Susan and the same number as Tim. They all end up with an even number of pieces and no one has more than 10-pieces. How many pieces of candy does each get?
A. Susan ? 2, Tim ? 4, Peter ? 6 , Nora ? 4, Norma ? 4 B. Susan ? 2, Tim ? 2, Peter ? 10, Nora ? 4, Norma ? 2 C. Susan ? 2, Tim ? 4, Peter ? 8, Nora ? 2, Norma ? 4 D. Susan ? 2, Tim ? 2, Peter ? 8, Nora ? 4, Norma ? 4
Solve the problem.At the start of a chemistry experiment, Sarah measured the temperature of a liquid to be 
At the end of the experiment, it had risen 
What was the liquid's temperature at the end of the experiment?
A. 50°C B. 16°C C. -50°C D. -16°C
Solve.9x - 1 = 103 - 4x
A. x = 
B. x = 8
C. x = -8
D. x = 