Did I lose my friends? Free points btw , please give me some answers

What are the solutions for the following system? -2x^2+y=-5 y=-3x^2+5

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.

Akindergarten class has 9 girls and 11 boys in class. what percent of the class are girlsit rain