Add or subtract, as indicated. Assume that all variables represent positive real numbers.
+ 
+ 
+ 
A. 34
+ 15
B. 8
+ 15
C. 
+ 
+ 15
D. 8
+ 
+ 
Answer: B
Mathematics
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A. f(x) = 
B. f(x) = 
C. f(x) = 
D. f(x) = 
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Divide.257 ÷ 21
A. 10 R 7 B. 11 R 12 C. 12 D. 12 R 5
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A. 70 B. 35 C. 1680 D. 140
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Find the distance between P and Q and the coordinates of the midpoint of the segment joining P and Q.
A. 5
; 
B. 3
; 
C. 3
; 
D. 3
; 
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