John go to the restaurant his bill of 30 to 57 he uses for 10% off coupon on the cost of the meal his tax is 8% he lose a tip of 18% of the amount before the coupon or tax is applied how much does he spend

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.