3x+4x+2y-3y =

4m-6mn-4m-mn =

9g-8h-3h-4g =

answer in the simplest way

-3x + 4x + 2y - 3y = x - y.

4m - 6mn - 4m - mn = -7mn.

9g - 8h - 3h - 4g = 5g - 11h.

Hope this helps,

Davinia.

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204

1/3 + 1/3 ≠ 2/6 because 1/3 alone = 2/6  

step by step explanation:

1/3 + 1/3 = 2/3       2/3=4/6