Give a reason to justify the equation. 3 • (10 • 12) = (3 • 10) • 12

According to commutative property of multiplication, changing the order of operants does not change the result. In that sense, no the numbers we multiply first, the result will be the same.

To prove this:

3 • (10 • 12) = 3 • (120) = 360

On the other hand:

(3 • 10) • 12 = (30) • 12 = 360

The result is exactly the same!

the answer would be 150 books

step-by-step explanation:

if you divide 300 by 2 you will get 150