Name the subset(s) of real numbers to which each number belongs. Then order the numbers from least to greatest.
9
10.-11.16

9,10,11,16

Step-by-step explanation:

9 is the least then 10 then 11 16 is the greatest

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