An=-5n+260
A40=60
So the Awnser is 60
(Hope this helped!!)
Hope this helps :) (the first circle is a fraction of thirds and the second circle is a fraction of sixths)
So far, you've only defined f(x). You haven't asked a question.
Left side goes up 5 right side goes up 7
The rate of change between 5,15 is 10