14 Sally weighed 145 pounds in 2006 and weighs 175 pounds in 2018. What was the rate of
change in weight? *
(1 Point)
5 pounds per year
2.5 pounds per year
7.5 pounds per year
30 pounds per year

2.5 pounds per year

Step-by-step explanation:

2.5lbs. per year

Step-by-step explanation:

So you have 12 year difference

And 30 pound difference

So divide 30 by 12

30/12

2.5

hello i am doing good for you that it's summer in your country or state ; )

btw in my country we just have sun and rain as (because i live in the caribbean lol)

also, thx a lot for the points : )

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