Acredit card company offers a cash back program on transactions for every transaction over $100 the customer gets three dollars back for every transaction $100 or less the customer gets one dollar back the customer made 19 transactions and all the total number of dollars given back was 27 right and solve a system of equations to find the number of transactions of each type

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?