Which of the following describes the work done by a heat engine? a. heat input minus heat output b. heat input minus work c. heat input plus heat output d. heat output minus heat input

the cellphone, they would then know if the killer would have contacted them or always hated them. or if it was a breakup. but if that is not the case, then it would be the clothing. to put in a bullet, it would have to be put in by hands. hands have finger prints which, would have giving you the answer of who done it.

explanation:

answer; (arch); good luck