Answer:
$8.73
Explanation:
Add up the food costs:
$1.75
5.85
3.45
----------
$11.05
Now add in the tax:
$11.05
+ 0.22
-----------
$11.27
Now subtract this total of $11.27 from the $20 she gave the clerk:
$20.00
-$11.27
---------------
$8.73
Sarah receives $8.73 in change.