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.

Input: Consider Input: A bookseller's net profit, in dollars, from the sale of b books is given by \(P(b) = 2.5b - 100\). How many books must she sell in order to earn a net profit of $225?
(A)130 (B)225 (C)331 (D)463 (E)563

Output: A


Input: Consider Input: A lacrosse team raised some money. The me used 74\% of the money to buy uniforms, 18\% to buy equipment, and the remaining \$216 for a team party. How much money did they raise?
(A)\$2400 (B)\$2450 (C)\$2500 (D)\$2600 (E)\$2700

Output: E


Input: Consider Input: 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)\(f(x) = -6x + l6\)


Output: D