The ratio between water and alcohol in a mixture is 2:3 if water contain 4 litres. how much is the alcohol in the mixture? please hurry its urgent ಠ︵ಠ​

Parabolas y=−2x^2 and y=2x^2+k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.

In september, louise planted a tree. every month, the tree louise planted grew 2 inches. what would the constant of proportionality of the line be?

Given that s is the centroid of triangle mno, find sq.