Answer:
$32.1
Step-by-step explanation:
From the question, we're told Chloe's bill was $26.75 and we're asked to find the total cost if she left the waiter a 20% tip.
Let's go ahead determine how much tip she left the waiter;

So she left the waiter a $5.35 tip.
To find the total cost, we need to add the tip to her bill;

Therefore, Chloe's total cost was $32.1