Solve by factoring and using the principle of zero products.6x2 + 4x = 16 + 24x
A. - 
, -4
B. - 
, 1
C. - 
, -1
D. - 
, 4
Answer: D
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Find the polar form of the complex number.-3 + 3i
A. 3
B. 3
C. 3
D. 3
Solve the problem.A particular freight elevator can safely carry 728 pounds. How many 
bundles of wood can be safely carried by this elevator?
A. 5 bundles B. 2 bundles C. 3 bundles D. 7 bundles
Solve the problem.A company determines that its marginal cost, in dollars, for producing x units of a product is given by 
where x ? 1. Suppose that it would be possible for the company to make infinitely many units of this item. Find the total cost. Round to the nearest dollar.
A. $13,230 B. $13,150 C. $13,300 D. $13,250
One of the oldest devices used for calculation is the abacus, as shown in the sample figure. Each rod names one of the positions we use in counting. Each bead on the bottom represents one unit in that column and each bead on the top represents 5 units in that column. The number illustrated in the sample figure below is 1,734.
?
Sample 
?
Choose an abacus to show 10,905.
?
A
B
?
?
C
D
?
A. C
B. B
C. D
D. A
E. none of these