SAT Mc Graw Hill 2011

710 MCGRAW-HILL’S SAT

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6. If , what is the value of x?
   (A) 3
   (B) 9
   (C) 27
   (D) 36
   (E) 81


7. Chris buys a chocolate bar and a pack of gum
   for $1.75. If the chocolate bar costs $.25 more
   than the pack of gum, how much does the pack
   of gum cost?
   (A) $.25
   (B) $.50
   (C) $.75
   (D) $1.00
   (E) $1.50


8. 40% of 80 is what percent of 96?
   (A) 20%
   (B) 30%
   (C) 33^1 ⁄ 3 %
   (D) 50%
   (E) 66^2 ⁄ 3 %


9. If l, m,and nare positive integers greater than
   1, lm=21, and mn=39, then which of the fol-
   lowing must be true?
   (A) n> l> m
   (B) m> n> l
   (C) m> l> n
   (D) l> n> m
   (E) n> m> l

3720 x−=

Note:Figure not drawn to scale.

3. In the figure above, lines l, m,and nintersect
   in a single point. What is the value of w+x?
   (A) 40
   (B) 70
   (C) 90
   (D) 130
   (E) 140


4. Let the function gbe defined by the equation
   g(x) = 3 x+4. What is the value of g(5)?
   (A) 8
   (B) 11
   (C) 15
   (D) 19
   (E) 23


5. If x> y,which of the following equations ex-
   presses the fact that when the difference be-
   tween xand yis multiplied by their sum, the
   product is 18?
   (A) (x−y)^2 = 18
   (B) (x+y)^2 = 18
   (C) (x−y) ÷(x+y) = 18
   (D) x^2 −y^2 = 18
   (E) x^2 +y^2 = 18

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