Pls help i will give points

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.

What properties allow transformation to be used as a problem solving tool

Find the zero function by factoring (try to show work) h(x)=-x^2-6x-9