Can someone please give me the answers to this? ... please ...

An episode of a television show is 60 minutes long when it originally airs with commercials. on a dvd without commercials, the episode is only 417 minutes long. how many1-minute commercials did the episode include when it originally aired? write and solve an equation to justify your answer.

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1

Which statement justifies why angle ebc measures 90?