Question 48624
Her calculation the tax on bread was correct but a more accurate value would be 8.45 cents. The calculation for the milk was also correct but the more accurate value would be 11.45 cents.

When the taxes on the two items are added the 0.45 extra cents on the bread and the extra 0.45 cents on the milk add to give an extra 0.9 cents which is rounded off to 1 extra cent.