Are these expressions equivalnet why or why not 42 + 23 and 7 ( 6 + 5 )

42+23= 65, 7(6+5)= 77, so they are not equivalent as they have two different outcomes.

42 + 23 = 65

7 ( 6 + 5)

42 + 35 = 77

they are not equivalent since they don't equal the same value

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.