Solve the inequality.x2 + 10x + 24 ? 0
A. -6 ? x ? -4
B. x ? -6 or x ? -4
C. x ? -6
D. x ? -4
Answer: B
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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.Let n(A) = 15, n(A ? B) = 43, and n(A ? B) = 11. Find n(B).
A. 39 B. 38 C. 28 D. 40
Use a graphing calculator to solve the linear equation.(-9x + 8) + 4 = -8(x + 9)
A. {- 84} B. {- 76} C. {- 3} D. {84}
Solve the problem.Three different high schools plan to order the same three text books. School A plans to order 90 of book 1, 20 of book 2, 80 of book 3. School B plans to order 60 of book 1, 20 of book 2, 20 of book 3. School C plans to order 80 of book 1, 100 of book 2, 70 of book 3. The cost of book 1 is $15 per copy, the cost of book 2 is $20 per copy, and the cost of book 3 is $25 per copy. What matrix product displays the cost to each school of buying the textbooks? Display the two matrices which must be multiplied and their product.
A. 
= 
B. 
= 
C. 
= 
D. 
= 