TASK DEFINITION: You are given a mathematical question described with an open-ended vocabulary. Questions in this task involve real-world situations, describing a mathematical problem. You are also given 4 or 5 answer options (associated with "A", "B", "C", "D", "E"). Do not generate anything else apart from one of the following characters: 'A', 'B, 'C', 'D', 'E'. LaTeX mathematical format (the standard way to express mathematical expressions in the typesetting software known as LaTeX) is used to express equations. Each question is solvable with high school math knowledge. Give only one answer for each question.
PROBLEM: When the organizers of a bake sale sell brownies for \$ 1.50 each, they sell 7 brownies every hour. When the brownies are sold for \$2.00 each, 5 brownies are sold each hour. If \(x\) is the price per brownie in dollars, and \(f\) is the number of brownies sold per hour, then which of the following could represent \(f\) as a function of \(x\)?
(A)\(f(x) = 4x + 1\) (B)\(f(x) = 6 x- 7\) (C)\(f(x) = -3x + 11\) (D)\(f(x) = -4x + 13\) (E)\(f(x) = -6x + l6\)

SOLUTION: D

PROBLEM: Aaron scored 84 points on a test made up of 10 eight-point short-answer questions and 8 five-point multiple-choice questions. If no partial credit was given and he missed 2 short-answer questions, how many questions did Aaron miss on the whole test?
(A)6 (B)10 (C)11 (D)12 (E)20

SOLUTION: A

PROBLEM: There are an equal number of dogs and cats at a clinic. After 2 dogs and 8 cats are taken home, there are three times as many dogs as cats still at the clinic. How many cats are still at the clinic?
(A)Three (B)Four (C)Six (D)Eight (E)Nine

SOLUTION:
A