So im in 7th grade and all of my grades are good like they're at a's b's and c's except for math so will i pass the 7th grade btw im in online school?

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

answer

you start with $5 and save $10 a week until you have at least $45wer

step-by-step explanation: