The square shown has sides of length 7z^5 decimeters. find its area

For this case we have that by definition, the area of a square is given by:

Where:

l: It's the side of the square

We have, according to the statement data, that:

Then, the area is given by:

By definition of power properties we have to:

So:

The area of the square is:

it is probably the graph on the bottom right.