Mom has $22 worth of reese cups and diet coke in her cart at target. charli and ashlee want lol dolls. charli comes to her mom holding three dolls and ashlee shows up holding 5 dolls. mom is over it and just wants to get home to eat reese cups and watch the masked singer, si she spends $98.92 at target (before tax). how much does rash silly lol doll cost?

sine

step-by-step explanation:

45

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