Balance the chemical equation.4Al + 
O2 ? 
Al2O3
A. 4; 2
B. 3; 3
C. 3; 2
D. 2; 4
Answer: C
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Answer the question.Two candidates for governor of a state differ in their accounts of the state's economy during the incumbent's term. The incumbent claims that during his four-year term the economy has improved, citing a rise in the median household income from $33,000 to $34,500. The challenger claims that the economy has declined, citing that the buying power of families in the state has declined during the four years. Which of the following best explains how both candidates can be right?
A. The incumbent is referring to the state economy, while the challenger is referring to the national economy. B. It is not possible for both candidates to be right; one of them is obviously lying. C. Only those in the middle income group saw their incomes rise, those with lower and higher incomes actually saw their incomes decline during the incumbent's term. D. Though the median household income increased, prices increased by a greater percent, meaning that in real terms the median income actually decreased.
Solve the problem.A garden hose is spraying a stream of water at a box on the ground with a force of 1.9 pounds. The water stream makes an angle of 60 degrees with the ground. What is the horizontal component of the force?
A. 0.5000 B. 1.645 C. -1.810 D. 0.9500
Change the decimals to their fraction or mixed-number equivalents, and reduce answers to lowest terms.15.8
A. 1
B. 
C. 1
D. 15
Perform the indicated operation.
+ 
A. 
B. 
C. 
D. 