Hello! I have a question =)
What is:
(7/4x) - 5 + 2y - 3.5 + (-1/4x) + 5?
Thank you!

Louise measured the perimeter of her rectangular scrapbook to be 154 cm. if the scrapbook is 45 cm wide, how long is the scrapbook?

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Parabolas y=−2x^2 and y=2x^2 +k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.