Add or subtract as indicated. Write the answer in lowest terms.
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A. 
B. 
C. 
D. 
Answer: A
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Solve.138 = 6m
A. m = 132 B. m = 21 C. m = 23 D. m = 828
Solve.362 chocolates are to be packed into boxes each of which will contain 9 chocolates. How many boxes of chocolates will there be? How many chocolates will be left over?
A. 40 boxes; 2 chocolates left over B. 39 boxes; 2 chocolates left over C. 39 boxes; 3 chocolates left over D. 40 boxes; no chocolates left over
Solve.A box is constructed by cutting out square corners of a rectangular piece of cardboard and folding up the sides. If the cutout corners have sides with length x, then the volume of the box is given by the polynomial 
Factor out the greatest common factor for this expression.
A. 4x(x2 - 18x + 45) B. 4(x3 - 18x2 + 45x) C. 4x(x2 + 18x + 45) D. 2x(2x2 - 36x + 90)
Find the indicated maxima or minima.Minimum of f(x,y) = x2 + 4y2 + 6,subject to 2x - 8y = 20
A. 26 when x = -2, y = -2 B. 26 when x = 2, y = -2 C. 26 when x = -2, y = 2 D. 26 when x = 2, y = 2