Please look at the image below!!!

do you have the measurements?

y=3n + 1

step-by-step explanation:

this is wrong because it says the second number is one less and i added one instead

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.

using pemdas, (order of operations) you'll see the answer is 24.