Evaluate. Assume that all variables represent nonzero real numbers.80
A. 1
B. 8
C. 0
D. -1
Answer: A
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Solve the problem.The formula to find Celsius temperature, C, given Fahrenheit temperature, F, is 
If the processing temperature of a chemical ranges from 
to 
inclusive, then what is the range of its temperature in degrees Celsius?
A. 150°C ? Temperature ? 175°C B. 32°C ? Temperature ? 45°C C. 270°C ? Temperature ? 315°C D. 100°C ? Temperature ? 175°C
Write a numerical expression for the phrase and simplify it.Five-ninths of the difference between -7 and -25.
A. 
[(-7) - (-25)]; 10
B. 
+ [(-7) - (-25)]; 30
C. 5(9) [(-7) - (-25)]; 10
D. 5(9) [(-7) - (-25)]; 810
Find the weighted mean of the numbers in the table. Round to the nearest tenth.A telephone company kept track of the calls for the correct time during a 24-hour period for two weeks. The results are shown in the table. 
A. 62.0 calls B. 61.8 calls C. 61.6 calls D. 59.6 calls
The bar graph below shows the number of students by major in the College of Arts and Sciences. Answer the question.
What is the average number of students taking Science, English, and Math? Round your answer to the nearest whole student if necessary.
A. 188 students B. 317 students C. 250 students D. 850 students