Solve for y.

8(y – 2) = 4y

y =4

Step-by-step explanation:

8(y – 2) = 4y

Distribute

8y -16 =4y

Subtract 8y from each side

8y-8y -16 = 4y -8y

-16 = -4y

Divide each side by -4

-16/-4 = -4y/-4

4 = y

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