Solve the inequality. Graph the solution set and write the solution set in set-builder notation.x2 + 2x ? 8
A. {x 
B. {x 
C. {x 
D. {x 
Answer: D
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Find the product.-9ax6(9ax7 - 6x3 - 10)
A. -81a2x13 - 6x3 - 10 B. -81a2x13 + 54ax9 + 90ax6 C. -81a2x13 + 54ax9 D. -81ax7 + 54x3 + 90
Determine whether the sequence is geometric.7, 4, 1, -2, -5, ...
A. Geometric B. Not geometric
Solve the problem.Jack borrowed $340 from his brother. Jack's brother wants 6 monthly payments of 
to repay the loan. How much extra is Jack's brother charging for the loan?
A. $200 B. $540 C. $110 D. $640
Solve the problem.A closed rectangular box with a volume of 16 cubic feet is made from two kinds of materials. The top and bottom are made of a material costing $0.10 per square foot, and the sides are made of a material costing $0.05 per square foot. Find the dimensions of the box so that the cost of materials is minimal.
A. 2 ft by 4 ft by 2 ft
B. 2 ft by 2 ft by 4 ft
C. 1 ft by 1 ft by 16 ft
D. 
ft by 
ft by 8 ft