Solve the problem.Write an expression for the area of the shaded region and express it in factored form.
A. x2 + 6xy + 36y2
B. x2 + 12xy + 36y2
C. (x + 6y)2
D. 6(x + y)2
Answer: C
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Fill in the blank with one of the words or phrases listed below. 
A(n) 
of an equation is a number that when substituted for a variable makes the equation a true statement.
A. positive B. negative C. solution D. multiplication
Multiply or divide as indicated. Write the answer in lowest terms.4
÷ 1
A. 3
B. 3
C. 4
D. 3
Simplify.-4(3 - 11) + (-5)2 + (-6)(-9)
A. 56 B. 111 C. 61 D. 3
Solve the problem.Doctors predict that by administering a vaccine, the number of new cases of a certain childhood disease will decrease by half each year. If 600 people were afflicted with the disease in 2000, estimate the number of new cases in 2005. (Round to the nearest whole number.)
A. 19 new cases in 2005 B. 9 new cases in 2005 C. 75 new cases in 2005 D. 38 new cases in 2005