First find out how many things you can buy. $3.69 + $3.69 is $7.38. If you add one more item that is $3.69 that would be over $10, so you can only buy two things. If you take the price of your two items ($7.38) minus $10.00, what is your answer?
I think German healthcare workers resumed the T4 program becuase it is cruel to keep people alive who cant tell you they want to be alive, it is like keeping dogs alive who are in immense pain and are unable to be cured.