Given a math problem with context and a question and 5 answer choices, the task is to provide the correct answer choice based on the problem. You must choose one of the given answer choices by letter: a, b, c, d, or e; anything else is invalid.

[Q]: Problem: 12. what is the dividend. divisor 17, the quotient is 9 and the remainder is 10.
Options: a. 150, b. 152, c. 154, d. 163, e. 144
[A]: d


[Q]: Problem: cost is expressed by the formula tb ^ 4. if b is doubled, the new cost w is what percent of the original cost ?
Options: a. w = 200, b. w = 600, c. w = 800, d. w = 1600, e. w = 50
[A]: d


[Q]: Problem: if two dice are thrown together, the probability of getting an even number on both dice is
Options: a. 1 / 4, b. 1 / 5, c. 1 / 6, d. 1 / 3, e. 1 / 2
[A]:
a