The local newspaper has letters to the editor from 50 people. If this number represents %8 of all of the newspaper's readers, how many readers does the newspaper have?

625

Step-by-step explanation:

50 is represented by 8%

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

f(x)=2/3x-8, which give g(x) the greatest value.

step-by-step explanation: