How much does a box of cereal cost 2009?

Unfortunately, I don't have access to historical pricing data for specific products like cereal. The cost of a box of cereal in 2009 would have varied significantly depending on:

* Brand: Popular brands like Kellogg's, General Mills, and Post would have different price points.

* Size: A smaller box would cost less than a larger one.

* Type: Cereal with more ingredients or special features (e.g., granola, high fiber) would likely be more expensive.

* Location: Prices could vary based on geographic location and local grocery store pricing.

To get a general idea of cereal prices in 2009:

* You could search online: Look for price comparisons or consumer reviews from that time period.

* Check historical grocery flyers: If you can find a grocery flyer from 2009, it might list the prices of common cereal brands.

* Ask someone who lived in 2009: If you know someone who lived in 2009, they might have a general idea of what cereal cost back then.

Keep in mind that the prices you find will only be estimates, and the actual cost of a box of cereal in 2009 would have been different depending on the factors listed above.