You have 280 gallons of a solution that is 20% salt. how much water should be added to dilute the solution down to 14% salt

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).

Shared decision making is always a positive strategy to take

The equation of a parabola is given. y=18x2+4x+20 what are the coordinates of the focus of the parabola?