Yuriy and his brother Anduray are each mailing a birthday gift to a friend. Yuriy’s package weighs three pounds more than two times the weight of Anduray’s package. The combined weight of both packages is 9 pounds. Part 1: Write a system of two linear equations to represent this situation. Define each variable that you use.

70 points ! pls 2. given the following two sets of data what is the union of the two sets and what is the intersection of the two sets. set a = {1, 2, 3, 4, 5, 6, 7, 8, 9} set b = {2, 4, 6, 8, 10, 12, 14} 3. given a regular deck of cards. describe a way of pulling cards that would create a dependent event and then one that would create an independent event. 4. what is the probability of drawing a red card and then drawing a spade without replacing the card that was drawn first?