What was the 87 and older population three decades ago? Round to the closest whole number.The nation's 87 and older population has tripled over the past three decades, reaching 1.2 million in 2010.
A. 100,000
B. 0.9 million
C. 400,000
D. 3.6 million
Answer: C
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Compare the graph of f(x) with the graph of y = x2.f(x) = - 
x2
A. Reflected across the x-axis and narrower B. Reflected across the y-axis and wider C. Reflected across the x-axis and wider D. Reflected across the y-axis and narrower
Solve.Write a polynomial in factored form that represents the total area of the figure.
A. (2x + 1)(x + 5) B. 2x2 + 5 C. (2x - 1)(x - 5) D. 2x2 + 11x + 5
What is the domain of f(x)? What is its range?f(x) = - 
A. Domain: (-?, -3) ? (-3, ?); range: (-?, 0) ? (0, ?) B. Domain: (-?, 0) ? (0, ?); range: (-?, 0) ? (0, ?) C. Domain: (-?, -3) ? (-3, ?); range: (-?, 0) D. Domain: (-?, 0) ? (0, ?); range: (-?, 0)
Solve the problem.The polynomial function 
gives the rate of gas leakage from a tank as pressure increases in p units from its initial setting. Will an increase of 2 units result in a lower rate of leakage compared to the initial setting?
A. Yes B. No