Answer:
42
Step-by-step explanation:
2/3 is exactly the same as 8/12
-3 because if you add -3 to 3 you get 0
Answer:
The temperature of metal after five years = -18.96875
Step-by-step explanation:
Given : Function 
where x is measured in hours
Another function is added h(x)=-x-3
therefore, the resultant function f(x)=h(x)+c(x)

For x=5



Therefore, The temperature of metal after five years = -18.96875