Translate the sentence into an equation. Use x to represent the unknown number. 13 less than a number is 5.
A. 
= 5
B. x - 13 = 5
C. 5 - x = 13
D. 13 - x = 5
Answer: B
Mathematics
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Add or subtract. Write the answer in lowest terms.
- 
A. 6a B. 0 C. 81b D. 9b
Mathematics
Simplify the decimal expression.20.50 - 7.69
A. 13.49 B. 13.81 C. 13.91 D. 12.81
Mathematics
Decide whether the pair of lines is parallel, perpendicular, or neither.The line through (-20, 5) and (-4, 7) and the line through 
and 
A. Parallel B. Perpendicular C. Neither
Mathematics
Use properties of logarithms to condense the logarithmic expression. Write the expression as a single logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions.logcm + logcn
A. logc(
)
B. logc(m + n)
C. logc(mn)
D. logcm ? logcn
Mathematics