Answer: 
Step-by-step explanation:
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The complete exercise is attached.</h3><h3>
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The area of a rectangle can be calculated with this formula:

Where "l" is the lenght and "w" is the width.
Then, you can notice that it can be obtained by multiplying the dimensions of the rectangle.
Knowing this, you can determine that the total area of the two flowers bed can be obtained by adding the products of their dimensions.
Since one of the rectangular flower bed is 2.78 feet by 4.81 feet and the other bed 2.78 feet by 5.61 feet, you can write the following expression to find the total area (in square feet)of the two beds:

If you factor out 2.78:
or 
Therefore, the expression that does not represent the total area in square feet of the two beds, is:

45 and no quotient!
I hope this helps!
Answer:
Variance = 25
Step-by-step explanation:
<em>Standard deviation is the under root of variance.</em>
<em>Variance is the square of standard deviation.</em>
<u>Data:</u>
Mean = 70
Variance = ?
Standard deviation = √variance = 5
Variance = 5²
Variance = 25.
Therefore, the variance is 25.
Answer: Causation
Explanation: One event is the result of another. In this case, several inches of rain causes the level of water in a lake to increase implying cause and effect.