If two lines don’t intersect, then is it parrell (( true or false ))

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

How many liters of peroxide should be added to 12 liters of an 8% peroxide solution so that the resulting solution contains 16% peroxide?   original added new amount of peroxide 0.96 liters x 0.96 + x amount of solution 12 liters x 12 + x 0.18 liter 1.14 liters 1.92 liters 2.10 liters