1. If 6y − 4z = 47 and y + 11z = 2, what is the average (arithmetic mean) of y and z?   7   4.5   5   3.5   9   Hint Hint       2. What is the smallest of five consecutive odd integers whose sum is S?   (S + 20)/5   (S − 20)/5   (S + 12)/5   5S + 20   5S − 20   Hint       3. How old will Mr. Winkle be p years from now if he was q years old r years ago?   p + q − r   p − q − r   p + q + r   p − q + r   −p + q + r   Hint       4. If x is equal to y divided by z, which of the following is equal to y multiplied by z?   xz3   xz2   zx2   xz3   xz   Hint       5. If 3 (4 − 9z) = 7z, then what is z?   3/34   6/17   17/6   −6/17   −17/6   Hint       6. The arithmetic mean (average) of 9, 29 and y is 19. What is the value of y?   59   57   19   47   39   Hint       7. A region within a semicircle is shaded. If D is the diameter of the semicircle, what is the area of the shaded region?   3πD2/8   πD2/4   3πD2/16   πD2/8   πD2/16   Hint