Jim and his Cousin are out at a restaurant. They each order a cheeseburger and milkshake. They also split an order to cheese fries. A cheeseburger is $3. A milkshake is $5. Cheese fries are $8. They spend 80% of their combined money. If Jim brought $20 how much did his cousin bring?
They spent $8 each on cheeseburgers and milkshakes because 3 + 5 = 
<gadget id="calculator">3+5</gadget>
<output>8</output>
8.
They spent $16 on these items in total because 2 x 8 = 
<gadget id="calculator">2*8</gadget>
<output>16</output>
16.
They spent $24 on their meal because 16 + 8 = 
<gadget id="calculator">16+8</gadget>
<output>24</output>
24.
They had $30 to start because 24 / .8 = 
<gadget id="calculator">24/.8</gadget>
<output>30</output>
30.
His cousin had $10 because 30 - 20 = 
<gadget id="calculator">30-20</gadget>
<output>10</output>
10.

<result>10</result>