Find the coordinates of the point that divides the directed line segment mn with the coordinates of endpoints at m(-4,0) and n(0,4) in the ratio 3: 1.

In two or more complete sentences describe how to determine the appropriate model for the set of data, (1,1), (3,2), (6,3), (11,4).

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

How is this equation completed? i cannot find any examples in the book.