Given f(x)=x^2 +4x and g(x)= 2x +3 , evaluate each expression. f(g(2.5))

Find the distance between (0,5) & (-4,2)

Which is f(5) for the function –2x2 + 2x - 3?

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.