Is it Technology? What have you already tried?
Answer:
there it is fella tried on ma own consciousness
Endothermic<span> Reaction??? </span>
Any of the basic mechanical devices for applying a force, such as an inclined plane, wedge, or lever.
When they ask you for the solution they are usually asking for x. So solve for X.
X=-12 so you only have one solution. so the answer is B