send all the details for this 2 questions

(4 points) Let R (x) and C' () be the cost and revenue functions of a company, where R and C are given in dollars and x is the number of items made and sold. R(z) = 5.50x C(x) = 3 + 720 Calculate the number of items that the company needs to make and sell in order to break even. (6 points) Write an equation in vertex form of a quadratic functions that has vertex at (-1, 3) and passes through the point (3, -9)