For the compound inequality, give the solution set in both interval and graph forms.x ? -2 and x ? 6
A. (-?, -2] ? [6,?)
B. (-?, ?)
C. ?
D. [-2, 6]
Answer: C
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Simplify the expression using the order of operations.102 + 82 ÷ 22
A. 168 B. 116 C. 41 D. 81
Solve the problem.A coffee store has available 75 pounds of A grade coffee and 120 pounds of B grade coffee. These will be blended into 1 pound packages as follows: an economy blend that contains 4 ounces of A grade coffee and 12 ounces of B grade coffee and a superior blend that contains 8 ounces of A grade coffee and 8 ounces of B grade coffee. Using x to denote the number of packages of the economy blend and y to denote the number of packages of the superior blend, write a system of linear inequalities that describes the possible number of packages of each blend. Graph the system of inequalities. 
What will be an ideal response?
Solve the problem.Among a group of 80 investors, 24 owned shares of Stock A, 33 owned shares of Stock B, 46 owned shares of Stock C, 13 owned shares of both Stock A and Stock B, 12 owned shares of Stock A and Stock C, 17 owned shares of Stock B and Stock C, and 8 owned shares of all three. How many investors did not have shares in any of the three? How many owned shares of either Stock A or Stock C but not Stock B?
A. 19; 32 B. 11; 36 C. 11; 40 D. 11; 32
Let f(x) = 8x2 - 5x and g(x) = 7x + 9.Find the composite.f[g(-k)]
A. 392k2 - 973k + 603 B. 56k2 + 35k + 9 C. 392k2 + 973k + 603 D. 56k2 - 35k + 9