Solve the system of linear equations by substitution. check your solution.-7x-2y=-13x-2y=11

Matteo makes raspberry punch. the table shows how many parts ginger ale and raspberry juice to use for a batch. raspberry punch parts ginger ale 2 parts raspberry juice 3 matteo decides to add one part of raspberry juice. what is the new ratio of ginger ale to raspberry juice?

The perimeter of a rhombus with a side of 6 is 24

State if the two triangles are congruent. if they are, state how you know?