Answer:
126.
Step-by-step explanation:
Each rectangle is a step. We'll start with the top one. This is simple: 6 times 3.
[tex]6 * 3 = 18.[/tex]
The farthest left is 5 times 3.
[tex]5 * 3 = 15.[/tex]
The crossed one is 6 times 5.
[tex]6 * 5 = 30.[/tex]
The one to the right of the crossed one is 3 times 5, again.
[tex]3 * 5 = 15.[/tex]
The farthest right is 6 times 5, again.
[tex]6 * 5 = 30.[/tex]
The bottom one is 6 times 3, again.
[tex]6 * 3 = 18.[/tex]
Now, we add.
[tex]18 + 18 = 36.\\15 + 15 = 30.\\30 + 30 = 60.\\36 + 30 + 60 = 126.[/tex]
