If both triangles are similar the ratio of sides will be same

Answer:
Selena is correct because she simplified correctly and then evaluated correctly after substituting the values for the variables.
I did this lesson i asked my teacher to help me but i did this problem on my own so i hope its right :)
Step-by-step explanation:
I know for 2x you would go up 2 over 1 but I don’t know about -7?? Maybe down
Answer:
Step-by-step explanation:
Equivalent expressions are expressions that are the same,even though they might look different. If you plug in the same variable value into equivalent expressions they will each give you the same value when you simplify.
Answer:
8x^2-8.76x+2.92
Step-by-step explanation:
Factor using FOIL and then simplify