There will be excactly 400 fiction books. The ratio of fiction to all is 4 to 9, or 4 to 900.
The organism is multi cellular, has tissue organization, and has no cell wall<span />
We need to use the Point slope formula to find the slope so we label
(2 , -8);(-1 , 16) subtract
x1 y1 x2 y2. y2-y1/x2-x1
16-(-8)/-1-2 = 24/-3 = -8
meaning the slope of this line is (-8)
2.75 is 110%
2.75/1.1=2.50
Therefore, the main bill was two and a half dollars
