Choose the correct response.Suppose that x ounces of a 25% acid solution are mixed with y ounces of a 35% solution to obtain 85 ounces of a 32% solution. One equation in a system for solving this problem is 
Which of the following is the other equation?
A. .35x + .25y = .32(85)
B. .25x + .35y = .32(85)
C. 35x + 25y = 32
D. 25x + 35y = .32(85)
Answer: B
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Sketch the surface z = f(x,y).f(x, y) = - 
A. 
B. 
C. 
D. 
Find the length of the curve.y = (4 - x2/3) 3/2 from x = 1 to x = 8
A. 6 B. 12 C. 18 D. 9
The president of a company predicts that sales N will increase after she assumes office and that the number of monthly sales will follow the curve given by
, where t represents time in months since she assumed office. What is the expected upper limit on sales?
?
A. 0 B. 3,000 C. 600 D. 1,500 E. infinity
Fill in the blank with one of the words or phrases listed below.
Two algebraic methods for solving systems of equations are 
and 
.
A. substitution, dependent B. addition, solution C. consistent, inconsistent D. addition, substitution