A jar contains some marbles. ½ of the marbles are blue. 3 BLACK marbles are added to the jar. What fraction of marbles in the jar is BLUE NOW?

If the graphs of the linear equations in a system are parallel, what does that mean about the possible solution(s) of the system? a. there are infinitely many solutions. b. there is no solution. c. there is exactly one solution. d. the lines in a system cannot be parallel.

Factor the following expression. 27y3 – 343 a. (3y + 7)(9y2 + 2ly + 49) b. (3y – 7)(9y2 + 2ly + 49) c. (3y – 7)(932 – 217 + 49) d. (3y + 7)(92 – 2ly + 49)

What is the approximate value of  x  in the equation below.–3.396–0.7080.3040.955