Solve the problem.Linda invests $25,000 for one year. Part is invested at 5%, another part at 6%, and the rest at 8%. The total income from all 3 investments is $1,600. The income from the 5% and 6% investments is the same as the income from the 8% investment. Find the amount invested at each rate.
A. $10,000 at 5%, $5,000 at 6%, $10,000 at 8%
B. $8,000 at 5%, $10,000 at 6%, $7,000 at 8%
C. $5,000 at 5%, $10,000 at 6%, $10,000 at 8%
D. $10,000 at 5%, $10,000 at 6%, $5,000 at 8%
Answer: A
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Write the given decimal as an infinite series, then find the sum of the series, and finally, use the result to write the decimal as a ratio of two integers.0.611611 . . .
A. 
B. 
C. 
D. 
Find an equation of a parabola satisfying the given conditions.Focus at (2, 6), directrix x = -4
A. (x - 2)2 = 12(y - 6) B. (x - 6)2 = 12(y + 1) C. (y - 6)2 = 12(x + 1) D. (y - 6)2 = 12(x - 2)
Evaluate 
.g(x, y, z) = x + z; G is the surface of the wedge formed from the coordinate planes and the planes 
and y = 1
A. 
+ 5
B. 150 + 25
C. 
+ 25
D. 
+ 25
Provide an appropriate response.Over what intervals of x-values, if any, does the function y = 
decrease as x increases? For what values of x, if any, is y ' negative? How are your answers related?
What will be an ideal response?