Movie Length (minutes)
●□□|□□□●
-|--|--|--|--|--|--|--|--|--|--|- -|--|-
80 90 100 110 120 130 140

What percent of the data lies between 109 minutes and 138 minutes?
O25%
●50%
O75%
O100%

In which range(s) does 75% of the data lie? Check all of the boxes that apply.
□ 81 minutes and 109 minutes
■ 81 minutes and 126 minutes
■ 95 minutes and 138 minutes
□ 109 minutes and 126 minutes

b.my answer is b.

brainliest

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