Writing and Solving Systems Using Elimination: Mastery Test 4 Select the correct answer Consider the following system of equations 21 y = 12 5y = -5 The steps for solving the given system of equations are shown below. Step 1: -5 2 - y) = -5 121 -30 - 5y = 5 Step 2 -101 + 5y = -50 Step 3 Step 4 Step 25) - = 12 Step

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?