Answer:
You saved $135 off of the original price of the guitar
Explanation:
The original price of the guitar is $450. If we subtract 30% of the original price, we will essentially be solving 450 - 135 which gives us $315. Since we know that 30% was the amount taken off, 30% of the original price is how much you saved. So, you saved $135 off of the original price of the guitar.
(sorry if this is confusing, I'm not very good with words)