A movie ticket costs S4 for children, $6 for senior citizens, and $10 for all others. If 7 people buy tickets, which of the following total sales figures is possible? $26, S37. S48, $57, $68, $75

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Given: ae ≅ ce ; de ≅ be prove: abcd is a parallelogram. we have that ab || dc. by a similar argument used to prove that △aeb ≅ △ced, we can show that △ ≅ △ceb by. so, ∠cad ≅ ∠ by cpctc. therefore, ad || bc by the converse of the theorem. since both pair of opposite sides are parallel, quadrilateral abcd is a parallelogram.