Answer:
Mass of the liquid in the tank will be 
Step-by-step explanation:
We have given volume of tar 
1 gallon = 3.785 liter
So 
Specific gravity = 1.2
Density of water 
We know that specific gravity 

Density of liquid 
So mass of liquid = volume × density
= 
So mass of the liquid in the tank will be 
Answer:
2
Step-by-step explanation:
Answer:
I pretty sure I answered this for you like 10-15 minutes ago
Answer:
x=-3, y=-6. (-3, -6).
Step-by-step explanation:
-4x+y=6
-5x-y=21
--------------
-9x=27
x=27/-9
x=-3
-5(-3)-y=21
15-y=21
y=15-21
y=-6