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If the height of an equilateral triangle is 9, what is its area?

(F) 27

(G) 54

(H) 81

(J)

(K)

Gregor works as a political intern and receives a monthly paycheck. He spends 20% of his paycheck on rent and deposits the remainder into a savings account. If his deposit is $3,200, how much does he receive as his monthly pay?

(A) $4,000 (B) $5,760 (C) $7,200 (D) $8,000 (E) $17,000

Correct Answer: A

Aleksandra began collecting model airplanes in May of 2008. The number of model airplanes that she owns in each month can be modeled by the function A(m) = 2m + 2, where m = 0 corresponds to May. Using this model, how many model airplanes would you expect Aleksandra to own in December of 2008?

（A）2 （B） 12 （C） 14 （D） 16 （E） 18

Correct Answer: D

In the standard (x,y) coordinate system, circle O has its center at (4,-3) and a radius of 12 units. Which of the following is an equation of the circle?

（A）(x - 4)² + (y + 3)² = 12 （B） (x + 4)² + (y + 3)² = 12 （C） (x + 4)² - (y + 3)² = 12 （D） (x - 4)² + (y - 3)² = 144 （E） (x - 4)² + (y + 3)² = 144

Correct Answer: E