Donny saves $15 on Monday, $28 on Tuesday and $13 on Wednesday. On Thursday he spends half of his total savings so far. How much did he spend?
Donny saves a total of $15+$28+$13 = $
<gadget id="calculator">15+28+13</gadget>
<output>56</output>
56 across all 3 days.
He spends half of his total savings which is $56*(1/2) = $
<gadget id="calculator">56*(1/2)</gadget>
<output>28</output>
28.

<result>28</result>