Which ratios form a proportion

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1. 1: select all the pairs of ratios form a proportion. (2 points)A: 1/6, 4/20 B: 7/9, 28/36*** C: 14/19, 21/27 D: 30/80, 6/18 2:
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2. 2.Which of the following ratios is equivalent to 15/20?A.200 to 150<<< B.3:5 C.5/4 D.45 to 60 6.Which pair of ratios can form a
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3. Which ratios form a proportion?a. 4/9, 12/25 b. 3/7, 18/42 c. 5/11, 20/45 d. 5/8, 15/25 Which ratio forms a proportion with
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4. 1. Which ratios form a proportion? (1 point)a. 3/15, 12/55 b. 8/24, 12/35 c. 5/18, 25/90 ***??? d. 4/11, 16/25 2. Which ratio
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