Solve the problem.A theater has 32 rows with 21 seats in the first row, 24 in the second row, 27 in the third row, and so forth. How many seats are in the theater?
A. 2208 seats
B. 2160 seats
C. 4416 seats
D. 4320 seats
Answer: B
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Solve the equation after making an appropriate substitution.x1/2 - 6x1/4 + 8 = 0
A. {4, 16} B. {16, 256} C. {2, 4} D. {-2, -4}
Solve the problem.A person with no more than $7000 to invest plans to place the money in two investments, telecommunications and pharmaceuticals. The telecommunications investment is to be no more than 3 times the pharmaceuticals investment. Write a system of inequalities to describe the situation. Let 
to be invested in telecommunications and 
to be invested in pharmaceuticals.
A. x + y = 7000 x ? 3y x ? 0 y ? 0 B. x + y = 7000 y ? 3x x ? 0 y ? 0 C. x + y ? 7000 x ? 3y x ? 0 y ? 0 D. x + y ? 7000 3x ? y x ? 0 y ? 0
Find the product of the complex number and its conjugate.-8i
A. -16 B. -64 C. 64 D. 16
Find the distance between the two points on the coordinate plane. Give an exact answer.(2, -6) and (6, -4)
A. 12 units
B. 12
units
C. 2
units
D. 2 units