Simplify.(-28 ÷ 4) - (6 ÷ 6)
A. 6
B. 7
C. -8
D. -7
Answer: C
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Use the rational zero theorem, Descartes's rule of signs, and the theorem on bounds as aids in finding all real and imaginary roots to the equation.x3 - 8x2 + x - 8 = 0
A. -1, 1, 8 B. -8, -i, i C. -8, 8, i D. 8, -i, i
Find the perimeter or area of the figure as indicated. Express your answer in simplified radical form.Find the perimeter of the rectangle. 
cm
A. 30 cm
B. 10
cm
C. 5
cm
D. 10
cm
Find the quotient using short division.25,650 ÷ 8
A. 3206 B. 3208 C. 3206 R2 D. 3206 R7
Solve the problem.According to a reputable source, 24% of car buyers make down payments of more than 6% of the purchase price of a new car. If there were 
car buyers in 2000, find the (i) percent who had down payments of 
or less and (ii) the number of car buyers having down payments of more than 
A. (i) 76%; (ii) 5,168,000 B. (i) 76%; (ii) 1,632,000 C. (i) 94%; (ii) 6,392,000 D. (i) 94%; (ii) 408,000