8. If and s is a positive number, then as 's' increases in value, 'd' -

   (A)    decreases in value
   (B)    increases in value
   (C)    remains unchanged
   (D)    increases then decreases
   (E)    decreases then increases

9. A cubic inch of metal weighs 3 pounds, cubic foot of the same metal weighs how many pounds ?
   (A)    36
   (B)    432
   (C)    5184
   (D)    576
   (E)    27

10. The scale of a map is 3/8 inch = 4 miles. If the actual distance between the two towns is 28 miles, the distance, in inches, on the map between the two towns is ...

    (A)    1 ⁵ / 8
    (B)    18 ² / 3
    (C)    2 ⁵ / 8
    (D)    3 / 56
    (E)    1 ½

11. If a - b = 3 and a + b = 11, find ab.

    (A)    -28
    (B)    112
    (C)    2
    (D)    28
    (E)    -2

12. (5x³)⁴ + (2x²)6 + (x)¹² = ?

    (A)    5x⁷ + 2x⁸ + x¹²
    (B)    626x¹² + 32x⁸
    (C)    5x¹² + 3x¹²
    (D)    625x⁷ + 64x⁸ + x¹²
    (E)    690x¹²

13. |8y - 2 | = 6, y = ?

    (A)    1
    (B)    -1, 1/ 2
    (C)    1, - 1/ 2
    (D)    ½
    (E)    3/4

14. Given that 1 yard = 3 ft, the distance run in a 100 meter race approximates which of the following most closely?

    (A)    300 yards
    (B)    95 yards
    (C)    110 yards
    (D)    150 yards
    (E)    102 yards

15. An airplane flies 330 yards in 2 seconds. What is the speed of the airplane, expressed in miles per hour? (5,280 ft. = 1 mile.)

    (A)    3300
    (B)    337.5
    (C)    400
    (D)    300
    (E)    410

16. If the sum of the edges of a cube is 36 inches, what is the volume of the cube in cubic inches?

    (A)    48
    (B)    27
    (C)    216
    (D)    64
    (E)    1728

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