Over the last 6 months Ben spent a total of $105 and Diondra spent a total of $170. Ben and Diondra each
received x haircuts and y shampoos from the hairstylist, as
shown by the equations below.
18x + 3y = 105
28x + 6y = 170

26

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

you have orange juice on wednesday. (idk why this is the answer)

step-by-step explanation: