Need this done well and quickly. Please circle the correct answer on the test (showing work is not necessary). There are 50 total questions, thank you in advance.

In the familiar song "The Twelve Days of Christmas," the total number of gifts received each day is a triangular number. On the first day there was 1 gift, on the second day there were 3 gifts, on the third day there were 6 gifts, etc., until the 12th day of Christmas. What is the total number of gifts received during all twelve days?

Mrs. Schultzkie has to correct papers for three different classes: Algebra, Geometry, and Trig. If Mrs. Schultzkie corrects the papers for each class at random, what is the probability she corrects Algebra papers first? Write your answer as a fraction in the form a/b (for example 1/7, 3/91)An ice cream parlor has 30 flavors but Su likes only half of them. If the scooper makes a three-scoop ice cream cone at random (using three different flavors), What is the probability Su will like all three flavors? Write your answer as a fraction in the form a/b (for example 1/7, 3/91) Please reduce the fraction.Mr. and Mrs. Kappler bought ten books and plan to give one at random to each of their five kids. If there is only one such way to distribute the books that will make every kid happy with their book, what is the probability that every kid will be happy with his or her book? Write your answer as a fraction in the form a/b (for example 1/7, 3/91)Two cards are drawn at random from a standard deck of 52 cards, without replacement. What is the probability that both cards drawn are queens? Write your answer as a fraction in the form a/b (for example 1/7, 3/91). Reduce the fraction.From a group of 22 nurses, 4 are to be selected to present a list of grievances to management. One of the nurses is Ms. Smith. Find the probability that Ms. Smith will be among the 4 selects. Write your answer as a decimal.A Hand of 5 cards is dealt to each player from a deck of 52 cards. Find the probability that a hand contains only hearts. Round to the nearest thousandth. Write your answer as a fraction in the form a/b (for example 1/7, 3/91). Reduce the fraction.An elevator has 4 passengers and stops at 7 floors. It is equally likely that a person will get off at any one of the 7 floors. Find the probability that no 2 passengers leave at the same floor. Write your answer as a decimal.A jar contains 3 red, 2 blue, and 8 green marble. If two marbles are drawn at random from the jar and the first marble is not replaced before the second is drawn, what is the probability that the second is green? Write your answer as a decimal. Round your answer to the nearest thousandths.An ice cream parlor has 30 flavors but Su likes only half of them. If the scooper makes a three-scoop ice cream cone at random (using three different flavors), What is the probability Su will like at least one flavor? Write your answer as a decimal. Round your answer to the nearest thousandths.Of the 16 members of President first cabinet, 4 are women. Suppose that the president randomly selects 4 advisers from the cabinet for a meeting. Find the probability that the group of four would consist of at least 1 woman. Write your answer as a decimal. Round your answer to the nearest thousandths.