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: if the price of a certain computer increased 30 percent from b dollars to 351 dollars, then 2 b =
Options: a. 540, b. 570, c. 619, d. 649, e. 700
[A]: a


[Q]: Problem: there are 15 boys and 10 girls in a class. if three students are selected at random, in how many ways that 1 girl or 2 boys are selected ?
Options: a. 100, b. 105, c. 115, d. 120, e. 125
[A]: c


[Q]: Problem: on the number line, the number p is twice as many units from - 2 as - 2 is from 5. if p is less than – 2, what is the value of p ?
Options: a. – 16, b. – 10, c. – 6, d. 10, e. 14
[A]:
a