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)

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step-by-step explanation: