What does j equal?
7+2(j-4)=j-2j+8

j=3

Step-by-step explanation:

7+2(j-4)=j-2j+8  PEDMAS

7+2j-8=j-2j+8

-1+2j=-j+8

3j=9

j=3

answer: i believe its b. if you sound out the sentences that sounds wrong.

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