I don't know what this is supposed to mean, but thanks for the free points! ;)
Answer: Triangle B
Step-by-step explanation: Congruent just means which shape matches the others, like as you see D and F are congruent as well as A, C, and E.
3(x+9)
3 multiply both x and 9
3x+27
hope it's helpful ❤❤❤
THANK YOU.❤