(high points) how can 1/4x - 3 = 1/2x + 8 be set up as a system of equations?

a. 4y + 4x = -12
2y + 2x = 16

b. 4y - x = -12
2y - x = 16

c. 4y + x = -12
2y + x = 16

d. 4y - 4x = -12
2y - 2x = 16

Exclude leap years from the following calculations. (a) compute the probability that a randomly selected person does not have a birthday on october 4. (type an integer or a decimal rounded to three decimal places as needed.) (b) compute the probability that a randomly selected person does not have a birthday on the 1st day of a month. (type an integer or a decimal rounded to three decimal places as needed.) (c) compute the probability that a randomly selected person does not have a birthday on the 30th day of a month. (type an integer or a decimal rounded to three decimal places as needed.) (d) compute the probability that a randomly selected person was not born in january. (type an integer or a decimal rounded to three decimal places as needed.)