The area of the shape can be calculated using the formula:
[tex]A=l\times w[/tex]
From the diagram, both the length and the width are 10 units long. Therefore, the area can be given to be:
[tex]A=10\times10[/tex]
By arithmetic, we have that:
[tex]10=7+3[/tex]
Therefore, we can rewrite the expression for the area to be:
[tex]A=10\times(7+3)[/tex]
Recall the distributive property:
[tex]a(b+c)=a\times b+a\times c[/tex]
Therefore, the expression can be rewritten to be:
[tex]\begin{gathered} A=(10\times7)+(10\times3) \\ or \\ A=(3\times10)+(7\times10) \end{gathered}[/tex]
The LAST OPTION is correct.
