Manuel buys 7.9 pounds of strawberries. each pound costs $3.89. which expression gives the best estimate of the cost of the strawberries?
(8)($4)(7)($4)(8)($3)(7)($3)

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.