Help please ill give brainy (7th grade math)

How many solutions does the nonlinear system of equations graphed bellow have?

In the given triangle, ∠aed ∼ ∠ abc, ad = 6.9, ae = 7.2, de = 5.2, and bc = 10.2. find the measure of bd and ce. round your answer to the nearest tenth.

Fast! find the length of cu. the triangles are similar. show your work.