Answer:
30%
Explanation:
140 is 70% of 200 which means that the dresses were on sale by 30%
140/200 =
140 ÷ 200 =
0.7 =
0.7 × 100/100 =
0.7 × 100% =
(0.7 × 100)% =
70%;
Then subtract from 100% to get 30%
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