Simplify.
A. 13
B. 84
C. 14
D. Not a real number
Answer: A
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The money I pay for music is a linear function of the number of songs I download. If I download 7 songs, then I pay $11.98. If I download 13 songs, then I pay $18.82. How much do I pay if I download 23 songs? ? ?
A. $27.16 B. $30.64 C. $26.22 D. $30.22
Add the following binary numbers and check your result by decimal addition.
A. 11010011 B. 11011010 C. 11010100 D. 11111111 E. 10110001
Solve the inequality. Graph the solution set, and state the solution set in interval notation.|x| + 8 ? 11
A. [-3, 3]
B. (-?, 3]
C. (-?, -3] ? [3, ?)
D. (-?, 19]
Solve the equation. Identify the equation as an identity, an inconsistent equation, or a conditional equation.
= 
+ 
A. Inconsistent, ?
B. Conditional, {3}
C. Identity, {x
-1}
D. Conditional, 