Cane someone please help me

1,532,1600

Step-by-step explanation:

so we will start with multiplication so we 15,000 x 4,200= 63 then we 63 x 800= 50,400 x 3,800= 191.52 x 500=95,760 x 200 =19,152x1,000=19,152x800=1,532,1600

so this is my sum i hope i am right

$25

step-by-step explanation:

25 - 4.50 = 20.5

20.5 / 2 = 10.25

10.25 + 10 = 20.25

20.25 - 12.50 = 7.75

therefore the answer is $25 as shown as the first number.

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