The question goes like this: a book has a hundred and twenty. I have read a quarter of the pages. How many pages do I have?

You read 30 pages of the book.

You have 90 pages left.

Step-by-step explanation:

120 total pages

⇒ 120 = 100%

pages have been read

⇒ = 25%

remaining

⇒ = 75%

120 x .25 = 30 pages read

120 x .75 = 90 pages unread

30 + 90 = 120

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square

3

step-by-step explanation:

because where the point where the 2 lines intersect is (3,-1) the x value is 3