Simplify.
+ 
- 
A. 12
B. 28
C. 
D. 
Answer: C
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Solve the problem.Chandra has 2 liters of a 28% solution of sodium hydroxide in a container. What is the amount and concentration of sodium hydroxide solution she must add to this in order to end up with 7 liters of 43% solution?
A. 5 liters of 47% solution B. 5 liters of 49% solution C. 5 liters of 50% solution D. 5 liters of 52% solution
Write the function in terms of a function of the reference angle.sec 
A. sec 
B. -sec 
C. -sec 
D. sec 
The sides in each pair of figures are proportional. Find the missing length.
A. 32 ft B. 16 ft C. 27 ft D. 48 ft
Find the general form of the equation of the the circle.Center at the point (-4, -3); containing the point (-3, 3)
A. x2 + y2 - 6x + 6y - 12 = 0 B. x2 + y2 + 6x + 8y - 17 = 0 C. x2 + y2 + 6x - 6y - 17 = 0 D. x2 + y2 + 8x + 6y - 12 = 0