Evaluate: 
A. 0.5
B. -7.5
C. -0.5
D. 7.5
E. 0
Answer: B
Mathematics
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A doctor has ordered a 5% saline solution. How much sodium chloride (salt) is in 500 mL of this solution?
A. 25 g B. 2.5 g C. 5 g D. 250 g
Mathematics
Find the requested sum for the arithmetic sequence.an = 5n - 16; S6
A. 14 B. 36 C. -66 D. 9
Mathematics
Find the average of the set of numbers.
and 
A. 
B. 
C. 
D. 
Mathematics
Solve.x2 + y2 + 9y = 0x2 + y2 = 7x
A. (1,0) 
B. (0,1) 
C. (1, -1) 
D. (0,0) 
Mathematics