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.

If Duane were to give Gregg \$14, they would each have the same amount of money. If Duane has \$45, how much money does Gregg have?
(A)\$10 (B)\$17 (C)\$24 (D)\$31 (E)\$38
B

A new airplane can travel at speeds up to 4,680 miles per hour. Assuming that the airplane is traveling at top speed, how many miles can it travel in 10 seconds?
(A)1.3 (B)7.8 (C)13 (D)78 (E)130
C

If Donald can type \(w\) words in m minutes, which of the following represents his average typing speed, in words per minute?
(A)\(
rac { m } { w } \) (B)\(
rac { w } { m } \) (C)\(
rac { 1 } { 2 } mw\) (D)\(mw\) (E)\(2mw\)
B