-2(x+3)+2>6 solving inequalities

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?

Liz had 140 pens and inna had 100 pens. after inna gave liz some pens, liz had 3 times as many pens as inna. how many pens did inna give liz?