
Simplify
to 

Both are over 11, so, just sum.


Answer:

Step-by-step explanation:
See attachment for grid
From the attachment:
There are 10 cells on the horizontal axis and there are also 10 cells on the vertical axis.
This implies that, the measurement of each cell is:



The horizontal axis has 7 selected cells.
This measures

The vertical axis has 4 selected cells.
This measures

So, the selected area is:


or

Answer:
1000 mililiters
Step-by-step explanation:
There are 1000 mililiters in one liter. Since there are two liters, it means there´s 2000 mililiters. He drink half of it, so 1000 mililiters are left.