Guess and Check #7

GC #8

GC #7 hints and answers

A Super Notebook was on sale last week at 15% off the regular price. Then an additional 10% of the sale price was deducted to give a final super sale price of $25.09. What was the regular price of the notebook?

Once again, there are many approaches to this problem - one is to guess at what the original price might have been, and then see whether your guess will make the sale price bigger or smaller than $25.09. Then adjust your guess. Or you could work backwards from the sale price - but think carefully about how to get the original price back from the sale price!

As always, be sure to explain the work you did to arrive at your answers!