In order to solve this question, we need to first recall how to find the area of a rectangle.

Substitute in the given values in the equation and solve for .

Divide both sides by

Dividing by a fraction is the same as multiplying by its inverse or reciprocal.

Find the reciprocal of

Simplify and rewrite.

Multiply and solve.

Reduce.

The width of the fracking site is

We are splitting into equal groups, so we are dividing by .

To solve we multiply by the reciprocal.

means the same thing as adding two times.

On our number line, we can make jumps of

The associative property of addition states that to add three numbers, any two can be added first, followed by adding the sum to the third. Of the statements given, only

demonstrates this property, so it is the correct choice.

means the same thing as adding nine times.

On our number line, we can make jumps of

We are splitting into equal groups, so we are dividing by .

To solve we multiply by the reciprocal.

We are splitting into equal groups, so we are dividing by .

To solve we multiply by the reciprocal.

First, multiply the numbers, ignoring the decimal points:

Since the two factors in the original product have three digits to the right of the decimal points between them, position the decimal point in the product such that three digits are at its right. The result, therefore, is

When we multiply a fraction by a whole number we need to make the whole number into a fraction by putting our whole number over .

and , so we are looking for numbers that fall between 0.4 and 0.6 exclusive. Of the four choices, 0.44 and 0.55 fall between these numbers. The correct response is two.