3. The number of visitors to a website in the first week is 85. The number of visitors each week is double the number of visitors the previous week. What is the total number of visitors to the website in the first 8 weeks?

Step-by-step explanation:

ar ar a sponge bob me boy

Step-by-step explanation:

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

i think it might be a but you might want a second opinion