Please help :( will give braniliest

Which ahows the graph of the solution set of 6x+4y< 12

Find the area of the triangle formed by the origin and the points of intersection of parabolas y=−3x^2+20 and y=x^2−16.

The value of the expression 16-^3/4 8 1/8 -6 6 1/40 1/64