Nathan finds a backpack at kitt's that is regularly $84.99, but is on sale for 1/3 off. the same backpack is regularly 72.99 at rec plus but is on sale for 25% off. Which is a better buy? Why?

The $72.99 backpack is a better choice to buy because

The $84.99 backpack for 1/3 off is approximately $28.3299 (about $28.33)

And the $72.99 backpack for 25% off is $18.2475 (about $18.25)

So since $18.25 < $28.33, the $72.99 backpack has a cheaper price.