Answer:
<h2><em><u>The company used 55 concrete bricks.</u></em></h2>
Step-by-step explanation:
We should first find the volume of one of the rectangular bricks.
10×6×4=240in³.
Now, let's divide 13,200in³ by 240in³.
13,200÷240=55
<h3><u>Hence, the company used 55 concrete bricks.</u></h3><h3><u /></h3>
Hope this helps! (It's probably too complicated, I'm very sorry ;-;)