Find the value of X I'm not sure if I'm correct but wouldn't it be 70+70=180 since it says that CD is congruent to ED. I'm not 100% sure because it says line CD is congruent to ED not angle.

He made a mistake on Step 3

Step-by-step explanation: He made a mistake on Step 3, he did not add and subtract correctly, [$171 + $52.45 − $18.50} is not equal to $241.95. It is actually 204.95. He can correct his error by trying to re-do his equation and see if he gets the same answer.

(I hope that was correct!) :3