Solve the problem.An IBM Proprinter printer priced at $610 is sold for $348. What was the percent of price reduction?
A. 232.8%
B. 175.3%
C. 57%
D. 43%
Answer: D
Mathematics
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Find the center of mass of a thin plate of constant density covering the given region.The region between the curve y = 
and the x-axis from 
to 
A. 
= 
, 
= 
ln 25
B. 
= 
, 
= 
ln 25
C. 
= 
ln 25, 
= 
D. 
= 
, 
= 25 ln 25
Mathematics
Use an Euler diagram to determine whether the argument is valid or invalid.All tigers are felines.All felines are mammals.All mammals nurse their young.All tigers nurse their young.
A. Valid B. Invalid
Mathematics
Find the limit.
A. 0
B. 1
C. does not exist
D. - 
Mathematics
Solve the equation.
+ x = 5
A. 
B. 
C. 
D. 
Mathematics