Help me solve, This is a test, need to explain the answer. This is science

the - sign and the +

Explanation:

Parasitism is a symbiotic relationship in which one species (the parasite) benefits while the other species (the host) is harmed.

while cooking a piece of 1/2 pound beef steak, a cast iron pan (2.4kg in weight) was heated 260 celsius.

i think its 5049.

i hope this !