Answer:
$3.6
Explanation:
We are told that the pie store is having a 20% off sale on all of its pies. The pie you want regularly costs $18.
To find the amount saved with the discount let us find 20% of 18.
![\text{The amount saved with discount}=(20)/(100)* 18](https://img.qammunity.org/2019/formulas/mathematics/high-school/g7ci557cpklbey7qw65n4qlzg74df6sh1a.png)
![\text{The amount saved with discount}=0.20* 18](https://img.qammunity.org/2019/formulas/mathematics/high-school/rdr4ohmz8fdknrnoxitji34ljesef0jmmi.png)
Therefore, the amount saved with the discount is $3.6.