ABC ~ A’B’C’
So, AB=A’B’ , BC=B’C’ , AC = A’C’
Given, AB=15 and A’C’=4
So, AC = 4 , A’B’ = 15
They made 3000$ in profit 500x100=50k
470x100=47k
47,000-50000=3000
Devon records 3/8 of 4 hours for comedy shows, which is 90 mins worth (1 hour and a half).
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