Answer:
y=-1.5x-2
Step-by-step explanation:
18y=12x-72
3y=2x-12
y=2/3x-4
Slope=-1.5
7=-6(-1.5)+b
7=9-2
A, C, and F are functions.
8 shelves
As 28 multiple by 2 is 224 and 28*9 is 252 so she will have 8 full shelves