What is the missing reason???

Given that,

AD is parallel to EC, BD is congruent to BC.

Solution,

Here,

= the reason for this is that the two angles are alternate interior angle. So, by alternate interior angle theorem .

As = due to vertically opposite theorem

It means,

(angle-side-angle)

Hence, the correct option is (c).

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

happy to

pls mark as brainliest.