In 2008, a cure for cancer walk sold 21 pink sponsorships and 10 gold sponsorships for a total of $770. in 2009 the walk collected $840 by selling 7 pink sponsorships and 20 gold sponsorships. what is the cost of one pink sponsorship?

The first few steps in solving the quadratic equation 9x2 + 49x = 22 ? 5x by completing the square are shown. 9x2 + 49x = 22 ? 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103