There is an unknown number of people at the beginning of lunch. Then... • Each student had 2 friends come sit with them, tripling the amount. · Then the entire group divided into 5 groups, and all but one group left and went outside, so only 1/5 of the total students were left in the lunchroom - 3 more people came into the lunchroom • The total number of people in the lunchroom at the end of lunch was 11 1 1. Which of the following equations would represent the story above to help us find how many people were in the lunchroom at the beginning? 1 0 5x + 3 = 11 35 + 3 = 11 5(773) = 11 3(x+3) = 11 5​

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.)