PLEASE HELP! It’s college algebra and I can’t solve this for the life of me

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

Ten members of balin's soccer team ran warm ups for practice. each member ran the same distance. their combined distance was 5/6 of a mile. to find the distance that each member ran, balin wrote the expression below.

The area of the map is the product of the length and width. write and expression for the area as the product of the two binomials do not multiply