I think its all four of them could be wrong but try all four !!!!!!
<span>Calculating heat gained or lost requires mass, specific heat, and
</span><span>c. change in temperature.</span><span>
</span>
<u>for the question w the coffee cup and the dishwasher: </u>19,536.72 J
<u>for the question w the 3 pots of boiling water:</u> They all have the same temperature
<u>for the question w the copper: </u>103.84 Celsius
(Not sure what the other 2 pictures are about but good luck)