Pedro goes to the store and buys a binder, a folder, and a highlighter. The folders cost is half the cost of the binder and the highlighters cost is 1.25 less than the binder. The total cost of the three supplies without tax is 4.75. Write an equation to represent the situation. Show your work.

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

imma say 16%. sorry if its wrong. i'm doing the same stuff right now

step-by-step explanation: