Multiple and divide signed numbers

Which ordered pair is a solution to the system of linear equations? 2x + 3y= 6 –3x + 5y = 10

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

Consider the polynomials given below. p(x) = x4 + 3x3 + 2x2 – x + 2 q(x) = (x3 + 2x2 + 3)(x2 – 2) determine the operation that results in the simplified expression below. 35 + x4 – 573 - 3x2 + x - 8 a. p+q b. pq c.q-p d. p-q