Well, one example would be how much space is in a cardboard box, to ship something to a friend or relative.
We know the three measurements:
L = Length, W = Width, and H = Height.
And the formula for a volume of a cube is:
V = L*W*H
So say that:
L = 6 , W = 10 Feet, and H = 3 Feet.
By using the formula above we get the equation: V = 6*10*3
And that equals: 180 Feet.
So the volume of the box, or the space you have to send something is 180 square feet.
Does this help?
The link I used for some of this info, which has other useful math models is: https://www.mathsisfun.com/algebra/mathematical-models.html
ab + a + 4b+4 = a(b+1) + 4(b+1) = (b +1)(a + 4)
The vertex is where two lines make a point and the answer would be letter C. A
I believe it’s a trapezoid but i’m not too sure... sorry :((