Add or subtract. Assume all variables represent positive real numbers.8
+ 5
A. 13
B. 13
C. 13
D. -3
Answer: C
Mathematics
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Simplify the complex fraction.
A. 
B. 
C. 
D. 
Mathematics
Find the standard deviation for each data set. Round to one more place than the data.2, 6, 15, 9, 11, 22, 1, 4, 8, 19
A. 7.1 B. 6.3 C. 2.1 D. 6.8
Mathematics
Evaluate.Let a = 
, b = 
. Find a + b.
A. 
B. 
C. 
D. 
Mathematics
Plot each number on a number line.-1.5, 3, 5, -4
A. 
B. 
C. 
D. 
Mathematics