Toby is dining out with his friend. They each order a cheeseburger for $3.65. He gets a milkshake for $2 and his friend gets a coke for $1. They split a large fries that cost $4. His friend also gets three cookies that cost $.5 each. The tax is $.2. They agree to split the bill. If Toby arrived with $15, how much change is he bringing home?
The cookies cost 3 x .5 = 
<gadget id="calculator">3*.5</gadget>
<output>1.5</output>
1.5.
The hamburgers cost $7.3 because 2 x 3.65 = 
<gadget id="calculator">2*3.65</gadget>
<output>7.3</output>
7.3.
The total cost is $16 because 7.3 + 2 + 1 + 4 + 1.5 + .2 = 
<gadget id="calculator">7.3+2+1+4+1.5+.2</gadget>
<output>16</output>
16.
The cost is $8 per person because 16 / 2 = 
<gadget id="calculator">16/2</gadget>
<output>8</output>
8.
Toby has $7 in change because 15 - 8 = 
<gadget id="calculator">15-8</gadget>
<output>7</output>
7.

<result>7</result>