15 plz if the diameter of the following circle is tripled, which of the following expressions could be used to find the area of the new circle? 9(254.34 in.2) 3(254.34 in.2) 9(1,017.36 in.2) 3(113.04 in.2)

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?