Someone plz help me no one helping me plz don’t answer saying idk or oh it so easy or something unhelpful cuz if it was easy HELP ME THEN please I’m desprate :(

(If you were asking for the answer for question 7)

c. Initially, Cassie has $20 in her account.

Step-by-step explanation:

-20 represents the slope or rate of change of the line and 275 represents the y-intercept or starting point of the line on the y-axis. C is the right answer because initially Cassie had $275 in her account, not $20.

step-by-step explanation:

what grade level is this? need to know so i can look in my old textbooks!

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