Respuesta :

Answer:

First box: 10n

2

10n + 2

Explanations:

The area model = 2 (5n + 1)

Thsi can expanded into:

2 (5n) and 2(1)

In the first box:

2 (5n) = 10n

In the second box:

2(1) = 2

In the third box:

2 (5n + 1) = 10n + 2