Answer:
step 1: move the -4 to the right: x^2 -2x = 4
step 2: add 1 to each side: x^2 -2x + 1 = 4 + 1
step 3: factor the left side and simplify the right side: (x-1)^2 = 5
step 4: take the square root of each side: x - 1 = sqr root of 5
step 5: move the 1 to the other side: 
and 
Answer: choice C) 19/60
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Explanation:
Add up the minute values: 19+4+37 = 60
We have a total of 60 minutes. Of that total, 19 minutes is dedicated to news.
Divide the two values (19 and 60) to get the fraction 19/60. We can't reduce from here so we leave it like that.
1/4+1/4=1/2 so the two friends get 1/4 of the pineapple.
Hope this helps :) <span />
