Which expression is equivalent to 1/5m -20

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.

total of apples - take away four

6-4 = 2

answer is 2 apples

i'm assuming that it's c.)   volcanoes built the mountains and earthquakes tore them down.