While at the beach daniel buys lunch for his family from a good stand he purchases one hotdog for 2.50 and 3 hamburgers if he spent a total of 13$ total write and solve an equation to find h the amount of each hamburger cost

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.