Any number that is divisible by 6 is already divisible by 2, but is not necessarily divisible by 12.
Counterexamples include: 6, 18, 30, 42, 54, and so on. You can find more by multiplying 6 by any odd number. However, multiplying 6 by an even number provides another "2" that would make it divisible by 12.
(3x+4) (2x-6)
6x-18x+4x-24
6x^{2} -14-24
So, she buys 16 bags, each of them weights

pounds.
to find how many pounds of soil she bought, we have to multiply:
16*

=//16 is equal to 8*2, so we can simpify:
2*

which is 2*5=10
so in the end she bought 10 pounds of soil!
If she has 6 yards and each pillow required 1 yard she can make 6 pillows