Use properties and mental math to find the sum (6/3/6 + 10/4/6) + 9/2/6

Solve the equation 3x2 + 19x + 9 = 0 to the nearest tenth.

At the beginning of the day, stock xyz opened at $6.12. at the end of the day, it closed at $6.88. what is the rate of change of stock xyz? a. 1.17% b. 11.0% c. 12.4% d. 81.5%

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