y=7 i got this answer cause i realized that 12 is only 3 numbers away from 9 so i added 3 to 4 and 3+4=7
hope it helps
Answer:
Side-Side-Side SSS
Step-by-step explanation:
i could be wrong.. but thats the rule that proves triangles are congruent
Answer:
3, 4, -7
Step-by-step explanation:
Coefficients are the numbers in front of the variable.
