Abox of national brand cornflakes is $2.09 for 12 ounces. a box of store label cornflakes is $3.09 for 20 ounces. if you have a 15% off coupon for the national brand, which is the better buy?

It will be better to buy the national brand cornflakes as it is less costlier.

Step-by-step explanation:

A box of national brand cornflakes is $2.09 for 12 ounces.

So, per ounce cornflakes of national brand costs dollars.

Now, if I have a 15% off coupon for the national brand, then the per-ounce cost for national brand cornflakes will be dollars.

It is given that a box of store label cornflakes is $3.09 for 20 ounces.

Then the per-ounce cost for store label cornflakes will be dollars.

Therefore, it will be better to buy the national brand cornflakes as it is less costly. (Answer)

hello! just here for points! though i wish i knew!