What is 37/9 as a mixed number in simplest form?

Im so bad at fractions they are not my best math thing to work on

Factor 15x^3 - 5x^2 +6x-2 by grouping. what is the resulting expression

Jack has a rectangular piece of land, the area of which is represented by a1 = 9.5l. his brother has a different rectangular piece of land, the area of which is represented by a2 = l(14 − l). let a represent the area in square meters and l represent the length in meters of the pieces of land. the two equations plotted on a graph meet at a point as shown in the image