Ashley's pizza delivery costs $15. What is the total amount that Ashley should give the delivery man if she wants to give a tip that is equal to 1/5 of the amount she ordered?
The tip that Ashley wants to give amounts to $15 x 1/5 = $
<gadget id="calculator">15*1/5</gadget>
<output>3</output>
3.
Hence, she will give a total of $15 + $3 = $
<gadget id="calculator">15+3</gadget>
<output>18</output>
18 to the delivery man.

<result>18</result>