Please rewrite this question in an understandable form.
You would need 15 boxes because when you divide 4070 by 275 you get 14.8 boxes. So with that in mind you cannot have an eighth of a box so you round up to the nearest whole number which in this case is 15 boxes.
Given that the base of the triangle is x m, the height is 3m less than twice it's base then the height will be represented by the equation:
(2x-3) m
thus the area will be:
Area=1/2bh
Area=1/2x(2x-3)=17.5
x^2-1.5x=17.5
writing the above equation is quadratic form of ax^2+bx+c=0 we get:
x^2-1.5x-17.5=0
