6. Alma subscribes to a website for processing her digital pictures. The subscription is $5.95 per month
and 4-by-6-inch prints are $0.19 each. How many
prints does Alma purchase if the charge for January
is $15.83?
pls show all step for me!

what does muffins have to do with anything?

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

t hope this

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