Solve the equation.|x| - 12 = -13
A. {1, -1}
B. {-1}
C. {1}
D. no solution
Answer: D
Mathematics
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Solve.An artifact is discovered at a certain site. If it has 54% of the 
it originally contained, what is the approximate age of the artifact to the nearest year? (
decays at the rate of 0.0125% annually.)
A. 3680 years B. 4929 years C. 2141 years D. 4320 years
Mathematics
Solve the problem.The batting percentages of some of the players on the company softball team are 
/> and 
What is the mean batting percentage of these players? Round to the nearest thousandth.
A. 0.242
B. 0.266
C. 0.311
D. 0.280
Mathematics
Write the word phrase as an algebraic expression. Use x to represent the unknown number.The sum of 7 and 5
A. 7 + 5 B. 7 - 5 C. 7 + 5x D. 7 ? 5
Mathematics
Solve the equation.
x + 5 = 11
A. 
B. 
C. 15
D. 30
Mathematics