I think it's an hour and a half
The answer is:
B. <span>X: Work is done to the system and temperature increases.
Y: Work is done by the system and temperature decreases.</span>
I got B,when you subtract 3/5 from NEGATIVE 2/3 it creates a negative 19 over a positive 15.
Please elaborate more on your question so I can help you
Add then divide the hint clearly backs it up two so yeahh