The rule of zero: x^0= 1
the answer is 1
The answer for what the ratio is for 4% is 4:100
The area is 14 because the triangles area is 6 and the rectangles area is 8
Final result :: (2x + 3y) • (2x - 3y)
This type of essay answer is pretty short.
You play out the equation and say what each part of the equation means. The vertex in this case, because it's a downward facing parabola, is the highest point on the graph. Now since they're kicking a ball, the vertex will be the highest point that the ball will go up to.
Hopefully this helps some. For full points you'll probably have to add a bit of padding and further explanation.