Perform the indicated operation.40 - 0.0972 + (-0.5)
A. 40.0028
B. 39.9028
C. 39.4028
D. 40.0972
Answer: C
Mathematics
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Solve the equation 
. Round your answer to two decimal places.
?
A. ?
B. ?
C. 
D. ?
Mathematics
Solve the problem.John owns a hotdog stand. His profit is represented by the equation 
with P being profits and x the number of hotdogs. What is the most he can earn?
A. $36 B. $77 C. $83 D. $65
Mathematics
Solve the problem.A certain radioactive isotope has a half-life of approximately 1750 years. How many years to the nearest year would be required for a given amount of this isotope to decay to 70% of that amount?
A. 525 years B. 831 years C. 901 years D. 3040 years
Mathematics
The function Y2 is defined as Y1 + k for some real number k. Based upon the given information about Y1 and Y2, find k. 
A. 5 B. 4 C. -4 D. -5
Mathematics