1. Your math marks decreased by 60% from the first quiz to the second quiz. If your marks in the third quiz were identical to those in the first quiz, by what percent did your marks increase from the second quiz to the third quiz ?   60%   100%   140%   150%   250%   Hint Hint       2. If 6y − 4z = 47 and y + 11z = 2, what is the average (arithmetic mean) of y and z?   3.5   4.5   5   7   9   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 3 (4 − 9z) = 7z, then what is z?   3/34   6/17   17/6   −6/17   −17/6   Hint       5. If c carpenters can make t tables in d days, how many tables can 10 carpenters, working at the same rate, make in 30 days?   300t/(cd)   tc/(3d)   300cd/t   cd/(300t)   3tc/d   Hint       6. Three-fourths of the fruits in a basket are peaches, and one-tenth of the remaining fruits are plums. If the rest are apples, what percent of the fruits in the basket are apples?   7.5   15   20   22.5   30   Hint       7. Which of the following is not equivalent to 5/8?   35/56   0.625   62.5%   40/64   36/48   Hint