CPM Homework Help : MC1 Problem 9-125

A pair of shoes originally costs $$42$ but is on sale for $33\%$ off. What is the new price? Show how you know.

Hint:

Think of $33\%$ as $3\left(10\%\right) + 3\left(1\%\right)$ .

$10\%$ of $$42$ is $$4.20$
$1\%$ of $$42$ is $$0.42$

Answer:

$$28.14$