How much water should be added to 12mL of 11% alcohol solution to reduce the concentration to 6%

Which system of linear inequalities is graphed? can somebody pleasssse

What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.

Sweet t saved 20 percent of the total cost of the green-eyed fleas new album let there be fleas on earth. if the regular price is $30 how much did sweet save