Which sum or difference is modeled by the algebra tiles?

The correct option is:

Option D is correct answer.

Step-by-step explanation:

We need to find which sum or difference is modelled by the algebra tiles?

The first tiles represent the expression:

The second tiles represent the expression:

The tiles that are cancelled are not part of the result,

So, result is:

Now checking if the tiles are added or subtracted.

Adding the terms we get:

So, the terms are added.

The correct option is:

Option D is correct answer.

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step-by-step explanation:

because mean value defines that total sum value over total number of set