Ms. lodge wants to donate to a local animal shelter. she wants to donate at least $593 to the shelter. she has already saved $418. she plans to earn $12.50 per day by pet-sitting for an hour each day to raise the rest of the money. which number line shows the number of days ms. lodge can spend pet-sitting and meet her goal? a. b. c. d.

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

1.30

step-by-step explanation: