20.0 because it was 20.4 but round it and you get 20.0
These are the answers in order:
2.99999....
9.99999....
12
5.3333....
0.6666...
11.999.....
6
2.5
Answer: 
Step-by-step explanation:
Based on the information provided, you know that the dimensions of the water tank John buys are:

Then, in order to find the expression that represents the volume of the water tank, you need to multiply those dimensions.
You must remember the Product of powers property, which states that:

Therefore, applying this property, you get that the expression that represents the volume of the water tank is:

Answer:
The answer is: still (0,0) the answer does not change if it is still both zeroes.
Step-by-step explanation:
90 degrees clockwise rotation
Mapping rule: (x, y) ⇒ (y, -x) Switch the coordinate numbers and turn the y coordinate into negative.
EXAMPLE: (4, 1) ⇒ (1, -4)