Answer:
0
Step-by-step explanation:
Use slope intercept form: 
= 
= 0
1) 8x-13
2)19r-19s
3)8m-10n
Solve in the parentheses then label the ones with the same variable and solve those setting up the equation with variable first. Do check this I am not perfect.
Hope this helped! ;)
We know to each pound of such, there is 16 packets produced per?
So, 16 x 40 = 640.
H. 135 meters
Work: 45 meters in 30 seconds 45/30= 1.5 so 90x1.5 = 135 meters
