Express using positive exponents. Then, if possible, simplify.
-2
A. - 
B. 
C. 
D. 9x2
Answer: B
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Construct a truth table for the given statement and then determine if the statement is a tautology.( ~ p ? q) ? (p ? q)
A. 
Is not a tautology.
B. 
Is not a tautology.
C. 
Is a tautology.
D. 
Is not a tautology.
Solve.To convert 25°F to Celsius, one must perform the calculation 
× (25 - 32). What is the Celsius equivalent of 25°F? Round to the nearest whole number.
Fill in the blank(s) with the appropriate word(s).
The wages of the employees of a company are presented in this histogram. Answer the question.
How many employees earn at least $4 and less than $6 an hour?
A. 10 B. 20 C. 34 D. 22
Convert the length as indicated. Round the answer to one decimal place.53 meters to feet (meters ? centimeters ? inches ? feet)
A. 48.6 ft B. 16.2 ft C. 57.8 ft D. 173.8 ft