Which is a prime number

111

121

131

141

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

You are at a restaurant and owe $56.20 for your meal. you want to leave an 18% tip. approximately how much is your tip?

Factor the polynomial by its greatest common monomial factor.