Pls help I really need this

Flashback to semester a. are triangles pqr and stu congruent? what is the congruency that proves they are congruent? what is the perimeter of triangle pqr? show your work.

The perimeter of a triangle is 69 cm. the first is 5 cm shorter than the second side. the third side is twice as long the first side. find the length of each side

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2