Help-
I'm really stupid and I don't understand can someone help me-

Can some one me with this math problem?

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

Part a: sam rented a boat at $225 for 2 days. if he rents the same boat for 5 days, he has to pay a total rent of $480. write an equation in the standard form to represent the total rent (y) that sam has to pay for renting the boat for x days. (4 points)