Question 4 (Essay Worth 7 points)Solve 30.45 / 8.2 to the nearest tenth. Check your answer using two estimation methods. Show your work. Question 5 (Essay Worth 7 point)Explain how applying the Associative Property of Multiplication to (18 x 25) x4 makes it easier to simplify. Show the solution in your explanation. Question 21 (Multiple Choice Worth 4 points)Which equation demonstrates the Associative Property of Multiplication? 3 • (8 + 2) = 3 • (2 + 8) 2 • (5 • 17) + 12 = (2 • 5) • 17 + 12 2 • (8 + 9) = 2 • 8 + 2 • 9 4 • (7 + 0) = 4 • 7

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Don’t know about the first one but….Question 5: The associative property is when you can move the parenthesis but still get the same answer. So rather than trying to figure out what 18 x 25, x 4 is, you can move the parenthesis to be around the 25 x 4 since it is way easier to find 25 x 4, x 18, because everyone knows that 25 x 4 is 100 and 100 x 18 is 1800. Question 21: The second one, because the other three have + signs in the parenthesis and the associative property of multiplication involves x signs in the parenthesis.