Stefan goes to a restaurant to eat dinner with his family. They order an appetizer that costs $10 and 4 entrees that are $20 each. If they tip 20% of the total for the waiter, what is the total amount of money that they spend at the restaurant?
The total cost of the entrees is 4 * $20 = $
<gadget id="calculator">4*20</gadget>
<output>80</output>
80.
The total cost of the dinner is $80 + $10 = $
<gadget id="calculator">80+10</gadget>
<output>90</output>
90.
The tip is $90 * 0.20 = $
<gadget id="calculator">90*0.20</gadget>
<output>18</output>
18.
The total cost with tip is $90 + $18 = $
<gadget id="calculator">90+18</gadget>
<output>108</output>
108.

<result>108</result>