Answer:
1st. 1/4
2nd. Not proportional
Explanation:
both are not proportional
16 : 4 = 16/4 = 4
20 : 5 = 20/5 = 4
9 : 36 = 9/36 = 1/4
not the same so NOT proportional
4 : 12 = 4/12 = 1/3
5 : 20 = 5/20 = 1/4
9 : 45 = 9/45 = 1/5
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