Solve the problem.In a chemistry class, 9 liters of a 4% silver iodide solution must be mixed with a 10% solution to get a 6% solution. How many liters of the 10% solution are needed?
A. 9.0 L
B. 3.5 L
C. 5.5 L
D. 4.5 L
Answer: D
Mathematics
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If possible, solve the system of equations. Use any method. If there is not a unique solution to a system, say why.9x - 2y = 136x - 8y = 2
A. Infinite number of solutions; dependent equations
B. (1, 2)
C. 
D. No solution; inconsistent system of equations
Mathematics
Find the effective rate of interest.6
% compounded monthly
A. 6.39% B. 6.25% C. 6.43% D. 6.29%
Mathematics
Identify the polygon as a triangle, quadrilateral, pentagon, hexagon, or octagon.
A. octagon B. hexagon C. pentagon D. triangle
Mathematics
Find the measures of the indicated sides or angles of the given parallelogram.
= 84.6 and 
= 47Find the lengths of the other sides of the parallelogram.
A. 
= 47, 
= 94.0
B. 
= 47, 
= 84.6
C. 
= 47, 
= 84.6
D. 
= 47, 
= 84.6
Mathematics